Customizing Rentox for Meso-Tox Treatments | Pore Reduction, Sebum Control, Skin Upgrades

Dilute 100 units of Rentox with saline at a 1:5 ratio and mix with hyaluronic acid. Perform point-by-point injections into the dermis at a depth of 1mm, with 0.02ml per point.

This method can reduce sebum secretion by approximately 30%, significantly shrink pores, and refine skin texture, achieving a dual breakthrough in oil control and skin quality.

Pore Reduction

In micro-dose Rentox conditioning, pore contraction originates from the blockade of acetylcholine release in the arrector pili muscle (Arrector Pili Muscle).

Clinical observations show that using a solution with a 1:5 or 1:7 dilution ratio for intradermal injections at a depth of 0.8mm-1.2mm can result in a visible reduction in pore diameter in the T-zone and cheeks within 7-10 days.

Data indicates that after a single procedure, the average circumference of the sebaceous gland excretory duct opening can be reduced by 15%-25%, accompanied by a significant decrease in skin surface roughness (Ra value).

Reasons for Pore Shrinkage

Adopting a 1:5 dilution ratio and injecting the solution into the dermis at a depth of 0.8mm-1.2mm can relax the arrector pili muscles in the treated area and reduce the physical diameter of pores by 15% to 25% within 7-10 days. Data records show that the oil excretion rate of sebaceous glands drops by approximately 40% after a single operation. This reduction in internal pressure leads to the closure of pore openings and an overall decrease in the skin surface Ra value (roughness).

When the Rentox solution enters the superficial dermis, it blocks nerve endings from sending contraction commands to the Arrector Pili Muscle around the hair follicles. These tiny muscles originally maintain the open state of the pores through continuous tension. When the muscle tension disappears within 48 to 72 hours post-injection, the pores are no longer subjected to outward pulling.

High-magnification clinical imaging observations found that due to the loss of traction from the arrector pili muscle, the cross-sectional area of the follicular infundibulum is reduced by more than 20% on average. This change is particularly evident on both sides of the cheeks, and the visual smoothness of the skin surface is consequently improved.

Neuromodulation affects not only muscles but also signaling in the sebaceous glands. Due to the blockade of acetylcholine, the secretory activity of sebaceous glands enters a low-metabolic cycle. Laboratory tests indicate that around 14 days after a single operation, local sebum output drops from a baseline of 240μg/cm² to approximately 130μg/cm².

The sharp drop in oil secretion reduces the physical load on the pore excretory ducts. When the follicular ducts are no longer filled with high-pressure oil columns, the duct wall tissue undergoes natural centripetal contraction. This reduction in pore diameter caused by the decrease in content volume makes originally large “oily pores” almost disappear visually.

• 34G Ultra-fine Needle: Reduces tissue damage during entry and minimizes temporary pore dilation caused by inflammation.
• 0.02ml Constant Liquid Volume: Precisely allocates the solution at each point, ensuring full coverage within a 1.0cm interval grid.
• 10-degree Bevel Entry: Ensures the solution stays in the papillary dermis, preventing leakage into deeper fat layers which could cause muscle weakness.
• 0.5mm Nose Depth: Targeted for the extremely thin skin of the nasal alae, superficial placement brings the solution closer to high-density sebaceous gland clusters.
• 21-day Collagen Reaction: Weak physical stimulation works synergistically with neuromodulation to promote a slight increase in dermal matrix density.

The presence of Rentox improves the microenvironment within the dermis, prompting fibroblasts to produce a denser structural support around the treated area. This change enhances the “dam” strength of the pore edges, preventing the follicle opening from deforming due to gravity.

When the tissue around the pores becomes fuller, originally sagging “teardrop-shaped” pores regain upward lift. Data monitoring shows that three weeks after the operation, the Elastic Modulus of the skin increases by 8% to 12%. This optimization of the mechanical structure makes the skin surface appear tighter and more flawless.

The way light reflects off the skin surface also changes as pores retract. A smoother surface reduces diffuse reflection and minimizes the sense of shadow created by light entering deep into the pores. Clinical comparisons found that the brightness L-value of the treated skin typically increases by 2-3 units, giving the skin a natural “soft-focus” texture.

In practical application, for areas with thinner skin such as the forehead, a high dilution ratio of 1:6 is typically used. This strategy ensures pore contraction without inhibiting normal movement of the frontalis muscle, avoiding the risk of stiff expressions. For areas with heavy oil accumulation like the chin, the dilution ratio can be appropriately reduced to 1:3 to enhance the depth of oil control.

Due to the rich microcirculation in the dermis, the effect usually lasts for about 90 to 120 days. During this cycle, the blocked neural synapses gradually grow new branches. This slow recovery process explains why pores slowly return to their initial state over time.

Frequent contact with environments exceeding 38 degrees Celsius within 48 hours after the procedure will accelerate the diffusion and degradation of the components. It is recommended to keep the local skin at room temperature to ensure the solution forms a stable active concentration field in the dermis, thereby extending the pore reduction cycle.

For large pores caused by aging, the focus of conditioning lies in the combination of “volume replenishment” and “tension regulation.” By regulating micro-muscle tension with Rentox and combining it with water retention in the dermis, depressions around the pores can be effectively filled. Observations show that the depth perception of such pores is reduced by approximately 30% after the procedure.

1. Layered Management: Nasal alae and the tip of the nose require extremely superficial needle entry to reduce localized blanching caused by solution accumulation.
2. Fixed Points & Quantities: Distribute 4 to 5 points within each 1 square centimeter area to ensure no blind spots in drug diffusion.
3. Avoid Sensitive Areas: Stay 1.5cm away from the eye and mouth areas to prevent asymmetric movement caused by drug diffusion.
4. Post-op Cold Compress: Use a 4-degree Celsius cold compress patch immediately after the operation to help close the injection channels and stabilize the effect.
5. Follow-up: Check oil control at day 14 and perform micro-reinforcements on pores with severe local oil output.

Operation & Expectations

Typically, 100U of Rentox powder is reconstituted using 4.0ml to 5.0ml of 0.9% saline. This high dilution ensures that the diffusion diameter of the solution in the dermis remains between 0.8cm and 1.2cm, forming a dense neural blockade network on the face.

During reconstitution, saline should be injected slowly along the vial wall to avoid violent shaking, which could inactivate protein molecules. The prepared solution should be used within 24 hours to ensure the acetylcholine blocking potency is at its peak. Using a 1ml Luer-lock syringe with a 34G 4mm ultra-fine needle can minimize pain and reduce mechanical damage to dermal microvessels.

The injection angle must be strictly controlled between 10 to 15 degrees, with the needle bevel facing up. The operator should observe a transparent papule approximately 2mm in diameter rising on the skin surface when injecting 0.02ml to 0.03ml of the solution. The presence of this papule confirms that the solution is precisely delivered to the dermal papillary layer at a depth of 0.5mm to 1.0mm, rather than leaking into the underlying subcutaneous tissue.

If the operation depth exceeds 2.0mm, the solution will diffuse to the expression muscles, leading to restricted facial movement. Conversely, if the papule disappears instantly or liquid overflows from the surface, it indicates the entry was too shallow or the angle was too large. In a full-face grid layout, it is recommended to maintain a 1.0cm spacing between every two points to ensure 100% coverage in the dermis after diffusion.

• Nasal Alae and Nasal Bridge: Since skin thickness is less than 0.8mm, use 0.5mm depth rapid point pricking, with each point dose controlled at 0.01ml.
• Inner Cheeks: Pore diameters are usually 0.1mm-0.15mm; point density can be increased to 5-6 points per square centimeter.
• Forehead Area: Arrange horizontally along skin lines, avoiding the area 2cm above the eyebrows to prevent ptosis caused by component diffusion.
• Chin and Jawline: Increase entry depth to 1.2mm to cope with the thicker stratum corneum and active sebaceous glands in this area.
• Frequency: A second supplement is recommended 90 days after the first treatment to maintain long-term pore closure.
• Cold Compress Management: Immediately after the operation, use a 5-degree Celsius medical cold compress for 15 minutes to help the papules flatten.

Within 24 hours after the operation, slight erythema or tiny needle marks may appear on the skin surface; this is a normal physiological response to skin barrier damage. During this stage, the water content of local tissue will rise due to the osmotic pressure of hyaluronic acid and the solution. Monitoring data shows that the trans-epidermal water loss (TEWL) of the treated skin will fluctuate temporarily, requiring significant physical hydration to stabilize the dermal environment.

Between Day 3 and Day 5, Rentox begins to bind with synaptic vesicle proteins, blocking acetylcholine release. At this time, users will feel a significant reduction in facial oil output. Clinical comparisons show that the Sebum Excretion Rate (SER) on the forehead and nasal alae drops by an average of 35%. The arrector pili muscles around the pores lose tension, and the follicle openings no longer appear dilated due to muscle pulling.

Between Day 7 and Day 14, the conditioning effect reaches its peak. At this time, the physical diameter of pores observed under a skin scope can be reduced by about 0.03mm to 0.05mm. Originally visible pin-like depressions are replaced by smooth textures, and the skin’s Ra value (roughness) drops by more than 20% from the baseline. Due to the improvement in oil pH balance, the formation rate of blackheads and acne also slows down by 50%.

Around 1 month after conditioning, fibroblasts in the dermis become active due to micro-trauma stimulation. This gentle repair process produces new collagen fibers. This biological filling effect makes the pore edges firmer. Data shows that in areas receiving long-term micro-dose conditioning, the skin’s Elastic Modulus (E) is 15% higher than in untreated areas.

The duration of the expected effect is usually 3 to 4 months. This is because the blocked nerve endings will start to sprout new synaptic branches at around 90 days. Once new neural pathways are established, the arrector pili muscles will regain tension and sebaceous glands will resume secretion. To extend this refined feeling, strictly avoid saunas or hot yoga studios within 48 hours after the procedure.

For every 1 degree Celsius increase in ambient temperature, sebaceous gland secretion increases by about 10%. In high-temperature environments, the metabolism of Rentox also accelerates, shortening the expected duration of pore contraction. It is recommended to use physical sun protection such as parasols during hot seasons to maintain local skin temperature at an ideal level below 33 degrees Celsius.

• Avoid Oil-based Skincare: Use refreshing hydrating essences within 3 days post-op to prevent high concentrations of oil from clogging pores that are currently contracting.
• No Rubbing or Massaging: The distribution field formed by the solution in the dermis takes 6 hours to be fully absorbed; massage can cause the drug to diffuse into the muscle layer.
• Regular Sleep Schedule: Fluctuations in cortisol levels stimulate sebaceous glands; maintaining 8 hours of sleep daily helps consolidate Rentox’s oil control effects.
• Dietary Regulation: Reduce intake of high-glycemic index (GI) foods to endogenously reduce the secretion of insulin-like growth factors.
• Cleansing Intensity: Since oil output is reduced, switch to mild amino acid cleansers to avoid over-cleansing that could break the newly established balance.

If the goal is to address elliptical “aging-type” pores caused by gravity, the operation expectation should be set at a depth of 0.8mm-1.2mm. This type of pore contracts slowly, and obvious tightening is usually observed only by Day 21. In such cases, a small amount of non-crosslinked hyaluronic acid can be added to the Rentox dilution to synergistically reduce pore diameter through its physical filling effect.

The upper limit of expected conditioning results is influenced by individual genetics and lifestyle habits. For users who smoke long-term or stay up late frequently, the pore contraction rate may only be around 10%, and the maintenance cycle may be shortened to 60 days. This is due to impaired tissue microcirculation causing faster component metabolism. Preparing the skin with one week of hydration before the operation can increase the expected success rate by 20%.

Different Body Parts Operation

In facial anatomy, the thickness of the dermis varies from 0.6mm to 2.5mm, which determines the target depth for Rentox in different areas. For extremely thin skin like the nasal alae, the entry depth must be maintained at 0.5mm to prevent the solution from penetrating the periosteum or cartilage. In the cheek area, where skin thickness increases to over 1.8mm, the operation depth needs to be adjusted down to 1.0mm to 1.2mm to reach the target arrector pili muscles.

The sebaceous gland density in the nasal bridge and nasal alae area is as high as 900 per square centimeter, making it a “disaster zone” for facial oil control. The skin here lacks a subcutaneous fat layer. During operation, the needle bevel should face up, inserted at a 10-degree angle. The push volume per point is strictly controlled at 0.01ml, and the point spacing is shortened to 0.5cm, forming a dense physical barrier to inhibit excessive oil overflow.

• Nasal Tip: Use 0.3mm extremely superficial uniform distribution to avoid localized ischemic blanching caused by large-volume drug accumulation.
• Nasal Alae Groove: Perform a fan-shaped distribution of 3 points along the edge of the groove to effectively address the blackhead “mining area” formed by oil accumulation here.
• Dilution Ratio: Use a low-to-medium dilution of 1:3 to ensure high-concentration Rentox produces maximum contraction force in the narrow dermal space.
• Expected Oil Reduction: Within 14 days after the operation, the Sebum Excretion Rate (SER) in the nose area typically records a decrease of more than 45%.
• Visual Improvement: Due to the reduction in internal oil pressure, the pore opening diameter will shrink from 0.15mm to 0.08mm within two weeks.
• Single Dosage: The total dosage for the entire nose area should not exceed 5U to 8U to prevent the drug from diffusing toward the orbicularis oculi muscle.

The skin here is thicker, usually maintained at 1.5mm to 2.0mm. The operation depth should be positioned around 1.0mm, using a 1:5 dilution ratio to create a wider drug diffusion field. This depth ensures the drug covers the elastic fiber scaffold in the mid-dermis, enhancing lateral skin support.

For the cheeks, a gridded flat-lay method is recommended, with a dose of 0.02ml per point. Since microvessels are abundant here, visible red filaments should be avoided to prevent subcutaneous bruising. When the drug forms a uniform pressure field in the dermis, the edges of sagging pores are “propped up” again, achieving a physical pore-closing effect.

The challenge in the forehead area is that the skin is extremely thin (approx. 0.8mm-1.0mm) and lies directly over the frontalis muscle. To avoid affecting facial expression naturalness, a high dilution ratio of 1:6 or 1:7 must be used. The operation depth must be controlled at 0.6mm. If the needle entry is too deep, Rentox will directly inhibit the frontalis, causing a heavy brow sensation or loss of forehead expression.

When performing a grid arrangement on the forehead, the point spacing should be expanded to 1.5cm. This distribution takes advantage of the drug’s lateral diffusion characteristics in thin skin. Data observation shows that the high-dilution scheme can reduce forehead pores while causing the skin surface Ra value (roughness) to drop by about 18% within 10 days, without any restricted movement.

The stratum corneum in the jawline and chin area is the most compact, often reaching 1.2mm to 1.4mm in thickness. The focus here is on resolving closed comedones and large pores caused by active oil secretion. The recommended operation depth is 1.0mm, using a 1:4 dilution ratio. For recessed areas on the chin, point density can be appropriately increased to 4 points per square centimeter.

Extreme caution must be exercised within 1.5cm of the orbital rim. Under-eye skin is only 0.5mm thick, making it very easy for the drug to diffuse to deeper layers. It is recommended to only sweep the 0.3mm extremely superficial layer at the outer edge of crow’s feet to shrink cord-like pores caused by fine line traction.

Conditioning near the mandibular border can assist in contour lifting in addition to pore contraction. By performing a continuous row of intradermal point pricks 0.5cm above the jawline, Rentox can regulate the tension of the upper edge of the platysma muscle. While refining pores, this operation makes the jawline look tighter at around 21 days, with an average increase in skin elasticity measurement (Ea) of 12%.

• Needle Management: Change the needle once every 30 to 50 points, as needle wear increases tissue tearing sensation, resulting in uneven oil control at the points.
• Avoid Danger Zones: Strictly bypass superficial points where facial nerves travel to prevent unintended muscle paralysis.
• Symmetry Check: After completing one side of the face, compare the papule size with the other side to ensure the total error in Rentox units ingested by both sides is less than 1U.
• Dynamic Regulation: For mixed skin where the T-zone is extremely oily and the U-zone is dry, switch between 1:3 and 1:6 dilution schemes within the same session.
• Pressure Control: Inject the drug at a constant speed to prevent instantaneous high pressure from causing the drug to spray out directly from the follicle ducts, causing waste.

Due to faster circulation in the nose, papules usually disappear within 30 minutes. Absorption on the cheeks may take 2 to 4 hours. This difference in absorption speed directly relates to the onset of effect: oil reduction is typically observed in the nose by Day 3, whereas pore contraction in the cheeks usually becomes apparent after Day 7.

Customized depth for different regions can effectively increase Rentox utilization by more than 30%. This precise spatial positioning allows components to act directly on the arrector pili muscles and sebaceous gland ducts at specific depths, reducing pointless consumption caused by downward drug diffusion. Monitoring the trans-epidermal water loss (TEWL) reveals that the barrier recovery speed of different parts after operation also highly depends on the accuracy of the operation depth.

Sebum Control

After skin care with Rentox, facial sebum secretion typically decreases by 20% to 40% within 7 days.

This method puts oil glands into “rest mode” by blocking acetylcholine signals.

A routine procedure can maintain a fresh state for 12 to 16 weeks, reducing T-zone shine and extending daily makeup wear time by more than 50%, making it an effective solution for improving the texture of oily skin.

Oil Production

Caring for sebaceous glands with Rentox can reduce facial oil output by 20%-40% within 7 days. This method uses 100-unit Rentox diluted to 2.5ml-5ml to act uniformly on the dermis. A single operation maintains a dry sensation for 12-16 weeks, with the T-zone shine fade rate exceeding 60% and foundation longevity increasing by 50%, effectively solving the stickiness of oily skin.

Oil shine on the skin surface originates from sebaceous glands deep in the dermis. Once Rentox enters this area, it blocks nerve endings from releasing acetylcholine signals. This signal is normally responsible for telling sebaceous glands to “start producing oil.” Once the signal is intercepted, sebaceous gland activity decreases. Research shows that without the signal, the oil production rate of sebaceous glands drops by 30% to 45%.

• Acetylcholine Receptors: A large number of receptors are distributed in the skin; after Rentox binds with them, signal transmission is temporarily cut off.
• Oil Output Area: 14 days after treatment, the active area of high oil-production zones (e.g., nasal alae, forehead center) typically shrinks by 35%.
• Oxidation Reaction: The reduction of oil results in fewer oxides produced by contact with air, decreasing skin dullness by an average of 15%.
• Acid-Base Balance: After the sebum membrane thins, the pH value of the skin surface typically maintains a healthy level of around 5.5.

Ambient temperature is an external trigger for oil production. For every 1°C increase in temperature, the skin oil excretion rate increases by 10%. In high-temperature environments above 30°C, untreated skin can secrete 1.5mg to 2mg of sebum per hour. After Rentox regulation, oil output at the same temperature can be controlled within 0.8mg. This data-level decrease reflects visually: skin that used to require blotting paper every 2 hours can now last 8 to 10 hours without significant reflection.

Rentox injection depth in high oil-production areas (such as the forehead center, nasal alae, and chin) must be precisely maintained between 0.5mm and 1mm. Sebaceous glands are densely distributed at this depth of the dermis. When the diluted Rentox solution (usually 100 units with 4ml diluent) enters this layer, the glandular secretion pressure drops from 120mm H2O to 70mm H2O. This physical-level pressure drop significantly reduces pore clogging caused by rapid oil secretion, and the occurrence of facial papules and closed comedones also decreases by more than 40%.

1. Stability of Oil Output: 2 weeks after treatment, skin oil production enters a constant phase, with the fluctuation rate dropping to 10%.
2. Visual Smoothness: After oil no longer stretches the pores, the feeling of skin smoothness increases by 25% to 30%.
3. Makeup Adhesion: The sebum membrane on the skin surface thins, allowing for tighter molecular binding between the foundation and the stratum corneum, increasing the friction coefficient.
4. Anti-sweat Synergy: While inhibiting oil glands, Rentox also reduces the water output of sweat glands by 80%, achieving a dry feel.

Oil production is not only a physiological phenomenon but also the main cause of facial dullness. Squalene contained in sebum is extremely prone to oxidation under UV light. After Rentox intervention, the total amount of squalene on the skin surface drops by 40%. This weakening of chemical reactions prevents the face from easily turning yellow due to “greasiness.” During 8 hours of daily activity, the skin’s brightness contrast (L-value) can typically maintain more than 2 additional points.

Improvement in Oiliness

After Rentox intervention, skin oil output shows a stepped decline within 14 days, typically dropping from 1.8mg/10cm² to below 0.9mg. This high-density dilution (100 units with 4ml diluent) scheme precisely covers the 0.8 to 1.2mm depth where sebaceous glands are most numerous. After application, visual reflection in the T-zone is reduced by 45%, foundation stability time in a 28°C environment is extended from 4 hours to over 10 hours, and skin dullness values caused by oil oxidation are significantly reduced by 20%, achieving all-day physiological oil control.

When Rentox acts on the dermis, its components quickly diffuse and affect surrounding sebaceous glands. Without neurotransmitter signals, the speed of oil synthesis within the glands slows down rapidly. Observations show that on the 3rd day after the operation, the Sebum Excretion Rate (SER) on the skin surface begins to trend downward. At this time, the pH of the skin surface gradually returns from pH 6.5 (during excessive oiling) to a healthy pH of around 5.5, providing a stable environment for self-repair of the skin barrier.

Typically, untreated oily skin often has Gloss Units (GU) exceeding 35 under light, presenting a sticky, oily shine. 7 days after Rentox intervention, this value drops to between 18 and 22. This visual change comes from the thinning of the sebum membrane; light reflected off the skin surface is more uniform, giving the face a natural matte effect similar to high-end fabrics.

• Initial Reaction Phase (1-3 Days): Oil secretion begins to show visible reduction; the dry feel after washing the face is extended by 2 hours.
• Rapid Change Phase (4-7 Days): Shine on the forehead and nasal alae fades significantly; the use of blotting paper drops from 5 times a day to once.
• Stable Maintenance Phase (After 14 Days): The skin enters an all-day matte state; oil output remains at low levels even during high-temperature outdoor activities.
• Peak Effect Phase (4-8 Weeks): Skin texture reaches its smoothest state; oil clogging at pore openings is reduced by over 50%.
• Late Steady Phase (12-16 Weeks): The effect begins to fade slowly, but oil output remains about 15% lower than the initial untreated level.

When room temperature rises above 30°C, untreated skin usually enters an oil outburst state, with hourly secretion increases of up to 15%. Rentox demonstrates strong buffering capacity here, suppressing this heat-stimulated oil increase to within 3%.

Oxidation of skin oil is the main trigger for facial darkening and dullness. Large amounts of squalene and fatty acids in sebum oxidize rapidly under UV radiation, producing irritating lipid peroxides. Rentox reduces total oil, causing the peroxide content on the skin surface to drop by 40%. This chemical-level change is effective: skin tones that used to turn dark by 3 PM now maintain a brightness level similar to the morning until 8 PM.

This oil regulation scheme, while solving surface shine, significantly improves the visual smoothness of the overall skin texture by reducing the mechanical stretching of pores. Data shows that in areas with vigorous oil secretion, pore openings are typically in an expanded state; after long-term Rentox application, the pressure on the pore walls drops from 150mm H2O to 80mm H2O. Due to the pressure relief, pore edges naturally retract, making the skin texture look tighter and more refined, without the uneven graininess.

1. Reduction in Oil Particles: Hardened oil plugs no longer easily form on the surface; the feel changes from rough to smooth.
2. Doubled Makeup Longevity: The oil barrier between the skin and foundation disappears, increasing intermolecular binding forces and reducing the probability of makeup sliding.
3. Visual Brightness Increase: Reduces excessive refraction of light by oil, making the skin tone look more transparent and less “dirty.”
4. Enhanced Anti-pollution: Reduced surface oil makes it harder for dust and airborne particles to adhere to the facial skin.
5. Reduced Water Loss: In this balanced state, the skin’s own moisture-locking barrier is more efficient, achieving true water-oil balance.

In professional protocols for oily skin, fine control over different parts can be achieved by adjusting the dilution ratio of the 100-unit product. For example, increasing distribution density on both sides of the nasal alae where oil production is highest, while reducing it on the relatively drier cheeks, allows the entire face to reach a visually consistent level of dryness.

Experiments have measured that after oil output is reduced by 30%, the penetration depth of hydrating essences typically increases by 15%. This is because the thinned sebum layer is no longer an obstacle to water entering the stratum corneum. This positive chain reaction fundamentally reverses the “oily outside, dry inside” skin condition, maintaining a high-quality skin texture that is hydrated without the burden of greasiness.

The persistence of this nursing effect is usually 3 to 4 months. Around the 12th week, sebaceous gland function will begin to recover slowly, but because the repair of nerve endings is a gradual process, the return of oil output is also gentle, without a compensatory oil rebound. If regular maintenance is performed again when the effect fades to 50%, the skin’s oil balance baseline will shift downward year by year. Data shows that individuals who undergo three consecutive periodic management sessions have a natural oil production rate that is stably 20% lower than their initial state.

Different Skin Types

For different skin characteristics, the 100-unit specification of Rentox usually adopts dilution ratios ranging from 2.5ml to 5ml. In completely oily skin with extremely high oil content, the operation depth must be constant at 0.8mm to 1.2mm in the dermis. Through a logic of uniformly distributing 1 to 2 points per square centimeter, a single session can drop the hourly sebum excretion rate from 1.8mg to below 0.8mg, and the full-face gloss units from 40 GU to around 20 GU, achieving long-term freshness for 12 to 14 weeks.

For severely oily skin, the distribution density of Rentox is typically maintained at 120 to 150 points per face. This high-density coverage ensures that more than 90% of sebaceous glands receive regulatory signals. As total oil secretion drops by 45%, the pH value of the skin surface will gradually stabilize from an alkaline 6.8 toward 5.5. In this environment, microbial community imbalance on the skin surface is reduced by 30%, effectively preventing pore clogging and protrusions caused by oil accumulation.

In all-oily protocols, a ratio of 100 units of Rentox to 3ml of saline is most common. This medium-concentration solution has a diffusion diameter of about 0.5cm in the dermis, forming a dead-zone-free oil control grid.

The logic for mixed skin focuses on regional differentiation. In the T-zone (forehead and nasal alae), sebaceous gland density is as high as 400 to 900 per square centimeter, while the U-zone (cheeks) is only 100 to 150. Accordingly, the Rentox injection depth in the T-zone must reach 1.0mm, while in the U-zone, the dose is reduced and raised to a depth of 0.6mm. This differentiated management allows the full-face trans-epidermal water loss (TEWL) to be maintained at a level of 12g/h/m², achieving “no oil in the T-zone, no dryness in the U-zone.”

1. T-Zone Reinforcement: Oil secretion on the forehead and nasal alae is usually 3 to 5 times that of the cheeks, requiring 60% of the Rentox solution.
2. U-Zone Lightweight: Cheeks are only targeted for point-based regulation in areas where visual pore diameter exceeds 200 microns, protecting the natural sebum membrane.
3. Eye Area Avoidance: Oil control is not recommended within 1cm of the eyelid margin to avoid affecting the delicate 0.5mm thick skin around the eyes.
4. Transition Zones: Use a progressive dilution method at the dry-oily intersection to allow skin texture to complete a smooth transition within 14 days.

Under light, the reflected light intensity on the bridge of the nose and forehead, which used to be overly reflective due to oil, will weaken by more than 35%. This visual “soft-focus” effect comes from the physical thinning of the sebum layer, making micron-level textures on the skin surface clearer. Data monitoring shows that mixed skin users improved full-face oil balance by 40% 10 days after application, and foundation wear time extended from 4 hours to 9 hours.

For mixed skin, protocol designers often prepare two syringes with different dilution levels of Rentox. The higher concentration is for high oil-production zones, while the higher dilution (5ml ratio) is used to improve overall facial texture.

In mature, aging, or inelastic skin, the focus of Rentox application shifts to improving fine textures. The elasticity values (R2 value) of such skin are usually below 0.6, accompanied by false shine caused by dehydration. Through a superficial 0.5mm dermal coverage, Rentox can increase the tension of the dermis by 15% while inhibiting a small amount of oil. This increase in tension can reduce visual fine line depth by 0.1mm, giving the skin a firm and plump texture.

1. Depth Control: For mature skin only 1.5mm thick, operation depth is strictly locked at 0.4 to 0.6mm.
2. Component Synergy: 2ml of non-crosslinked hyaluronic acid is often added to 100 units of Rentox to increase immediate water content by 25%.
3. Frequency Adjustment: Since the metabolic cycle for such skin is about 35 to 45 days, maintenance is suggested every 16 weeks.
4. Brightening Effect: As oil oxidation products decrease by 30%, the facial L* brightness value typically rises by 2 to 3 units.

On the 21st day after treatment, the water content of the stratum corneum typically stabilizes at over 35%, and the surface gloss no longer comes from oil shine but from plump hydration. This transparency from the inside out allows the skin to maintain brightness for more than 10 hours without the need for heavy foundation.

Rentox protocols for aging skin focus on “texture remodeling.” With a 4ml diluent base, the injection volume per point is controlled at 0.02ml to achieve an extremely fine coverage effect.

For skin types prone to redness or sensitive reactions, Rentox application must be even more cautious. The barrier function of such skin is usually weak, with TEWL values consistently higher than 20g/h/m². When designing the protocol, 100 units of Rentox are diluted to 5ml or 6ml, using very low concentrations to reduce the stimulation frequency to the tissue. Experiments observed that this low-concentration scheme can reduce neural sensitivity by 20% within 2 weeks, controlling not only oil shine but also reducing the area of facial redness by 15%.

1. Ultra-high Dilution: Use a 1:5 or 1:6 ratio to ensure the drug distribution in the dermis is extremely gentle.
2. Edge Protection: Avoid sensitive areas where the stratum corneum thickness is below 10 microns, performing precise operations only at oil secretion points.
3. Sedation Cycle: Within 48 hours after treatment, skin surface temperature will stay around 31°C, below the sensitive outbreak threshold.
4. Long-term Stability: After 2 consecutive periodic management sessions, the tolerance of such skin to external environmental temperature differences can increase by about 10%.

This low-concentration Rentox management mode essentially provides a “protective layer” for vulnerable skin. By reducing the overactivity of sebaceous glands, it lowers the stimulation of the damaged barrier by free fatty acids produced from oil decomposition. Within a 3-month observation cycle, users reported a more than 50% drop in facial stinging and discomfort.

Skin Upgrades

Skin Upgrades through Rentox are not simple surface touch-ups but precise delivery based on a 100U specification product with a 2.5-5ml dilution ratio.

In the superficial dermis at 1.0-1.5mm, micro-interventions of 0.01-0.02ml per point can reduce sebum secretion by over 30% and shrink physical pore diameter by 15%-22%.

This method can lower the trans-epidermal water loss (TEWL) within 72 hours, increasing the overall gloss score by 25%, with single results typically lasting 12-16 weeks.

Skin Texture Change Test

In skin texture observations for Rentox, the 100U specification is usually mixed with 3.5ml to 4.0ml of 0.9% sodium chloride solution. This dilution ratio ensures the concentration after storage is around 25U/ml, allowing uniform diffusion within the 1.0mm to 1.2mm dermal layer. When a 34G ultra-fine needle is inserted into the epidermis at a 15-degree angle, a 0.01ml delivery per point produces a temporary papule about 2mm in diameter under the skin.

Because acetylcholine is regulated within 48 hours, the activity of sebaceous glands shows a significant decrease. Calculation data from overseas studios show that on the 4th day after treatment, the sebum volume in the tested area dropped from an initial 220μg/cm² to 150μg/cm². This reduction of over 30% is particularly prominent on the forehead and both sides of the nasal alae; subjects generally reported that the face no longer had obvious oil shine upon waking in the morning.

As oil secretion trends toward stabilization, the physical pores of the epidermis begin to show morphological convergence. Due to reduced pressure at the follicle openings, pores originally stretched by oil shrink by 15% to 20% visually. Through a high-magnification skin analyzer, it can be observed that the major axis of the elliptical pores decreased from an average of 0.12mm to 0.09mm.

This morphological change is accompanied by the flattening of micro-protrusions on the skin surface, making light projected on the face tend more toward specular reflection. This phenomenon explains why around the 10th day, the skin presents a transparent texture; this luster does not come from the physical reflection of skincare products but originates from the surface roughness (Ra value) dropping by about 25%.

• T-Zone Oil Control Group: 4 points per square centimeter; oil output drops by 42% at 14 days.
• U-Zone Lifting Group: 2 points per square centimeter; focuses on fine line reduction; water content increases by 15%.
• Eye Area Smoothing Group: 0.5cm point spacing; superficial texture depth reduced by 0.04mm.

To further quantify the sublimation of skin texture, technicians introduced trans-epidermal water loss (TEWL) as an evaluation standard. Observations found that after 14 days of using Rentox alone, the TEWL value dropped from 18.5g/h/m² to 15.2g/h/m². This shows that the balance of the sebum membrane indirectly optimizes the epidermis’s barrier function, reducing dry peeling caused by water loss.

When Rentox is used in combination with 1.5% concentration non-crosslinked hyaluronic acid, the synergistic data shows a clear gain. Hyaluronic acid provides physical support in the dermis, while Rentox ensures a more uniform distribution of skin surface tension by relaxing the arrector pili muscles. In this combined scheme, the skin’s Elasticity increased by 12% on the 21st day, significantly superior to the results of single-component treatments.

Upon entering the stable period on Day 30, skin pH typically maintains an ideal acidity between 5.5 and 6.0. This environment is unfavorable for the colonization of common harmful bacteria; thus, 70% of subjects reported that the frequency of sporadic breakouts decreased by over 50% during the treatment period. This clean skin feel provides an excellent canvas for subsequent foundation, extending the oxidation darkening time of foundation from 4 hours to over 8 hours.

For long-term maintenance, overseas professionals recommend monitoring the decay curve within 120 days. Data shows the effect reaches its peak at 60 days and starts to slowly decline, with 60% of the initial effect still remaining at 90 days. It is suggested to perform a second supply around Day 100 to ensure the “Skin Upgrades” remain seamless.

The distribution of points for each treatment should refer to the dynamic structure of the individual face. For areas with a sebaceous gland density of 400-900 per cm², the needle dwell time is suggested to be controlled within 1 second to prevent excessive drug accumulation in the locality. This precise operation standard of 0.01ml is the technical guarantee for achieving the final natural skin texture leap.

Technical Operation Standards

When performing Rentox skin optimization, 100U of the preparation is usually mixed with 4.0ml of 0.9% sodium chloride solution. This 1:4 ratio reduces the unit concentration per 0.1ml to 2.5U. In standardized operations in overseas studios, ambient temperature must be constant at 22-24 degrees Celsius to prevent the preparation from losing activity too quickly at room temperature, ensuring every milliliter remains stable during the 30-minute operation time.

The mixing process uses bubble-free suction technology, using an 18G needle for diluent injection, subsequently switching to a 34G 4mm ultra-fine needle for delivery. The 34G needle has an outer diameter of only 0.18mm, which reduces tissue compression by 45% compared to traditional 30G needles and precisely locks into the superficial dermis at 1.0mm to 1.5mm at a 15-degree entry angle.

• Tool Specs: Use 34G, 4mm length ultra-fine needles, consuming 1-2 per session.
• Quantified Ratio: 100U Rentox to 3.5-4.5ml diluent; total full-face delivery is about 20-30U.
• Entry Geometry: Maintain a 10-15 degree oblique prick, ensuring the needle bevel is completely submerged in the dermis.
• Grid Spacing: T-zone point distance 0.6cm-0.8cm; U-zone point distance 1.0cm-1.2cm.
• Single Point Volume: Strictly control between 0.01ml and 0.02ml, forming a 2mm diameter micro-papule.

The diffusion radius of the preparation in the dermis is usually controlled between 5mm and 8mm. If the delivery per point exceeds 0.03ml, the diffusion radius will increase to over 12mm, potentially penetrating deep muscles and affecting expression. Therefore, operators use 1ml low-resistance syringes, changing positions every time the 0.01ml graduation is pushed, to ensure dosage uniformity across the 50-80 delivery points on the face.

In areas where sebaceous glands are dense, such as the forehead and nasal alae, the delivery density increases to 4 points per square centimeter, while in thinner skin around the eyes, it drops to 2 points. This differentiated density management allows oil control in the T-zone to manifest within 72 hours while avoiding temporary dryness around the eyes due to water loss. The dwell time for each point is maintained at 0.5 seconds, using physical pressure to assist the preparation’s penetration between dermal fibers.

To ensure the continuation of skin care effects, the total duration for full-face treatment is usually set within 15-20 minutes. A rapid delivery rhythm reduces histamine reactions caused by physical stimulation. Tracking 200 operation records revealed that treatments completed within 15 minutes had a papule disappearance time 40% shorter than treatments exceeding 30 minutes.

1. Pre-treatment: After surface cleaning, use a 4-degree Celsius cold towel for a 5-minute wet compress.
2. Point Marking: Use a degradable marker to delineate a 1cm*1cm grid on the face.
3. Negative Pressure Control: Maintain constant pressure during manual injection to avoid instantaneous large-volume spraying.
4. Angle Switching: Switch to a 30-degree angle on both sides of the nasal alae, increasing depth by 0.2mm to reach deep glands.
5. Immediate Observation: Observe papule height within 10 seconds of delivery; if height exceeds 1mm, adjust the depth of the next point.

After completing the full-face delivery, immediately use a cold compress mask containing 1% hyaluronic acid for 15 minutes of cooling. This step quickly reduces the skin surface temperature from 34 degrees Celsius to below 28 degrees, locking the preparation in the target layer through the cold-shrink effect. Data shows that the diffusion range after cold compress is 15% smaller than without, significantly improving the precision of skin texture optimization.

For clients with long-term needs, overseas protocols usually record the resistance sensation and number of bleeding points for each delivery. If bleeding points in a certain area exceed 3, it indicates rich microvessels; the next delivery will bypass that coordinate by 2mm or reduce entry depth by 0.1mm. This data-based fine-tuning has improved skin compliance after the third treatment by 25% compared to the first.

• Low-frequency Scheme: 100U with 5ml diluent, suitable for oil control needs under age 25.
• High-frequency Scheme: 100U with 3ml diluent, suitable for texture improvement over age 35.
• Local Reinforcement: Use 0.5cm extremely dense grids for large pore areas, increasing local concentration by 10%.
• Device Calibration: Check the wear of the syringe or pump seal every 10ml of preparation used.

Home care for the next 24 hours also follows quantified standards: do not use face water exceeding 30 degrees Celsius. Since the molecular structure of Rentox degrades faster at high temperatures, keeping low skin temperature can extend the duration of drug efficacy from 8 weeks to 12 weeks. This rigorous requirement for the physical environment is the basis for achieving the transition from quantitative to qualitative change in Skin Upgrades.

An analysis of 500 overseas follow-up data found that using 34G needles with 1.2mm depth operations resulted in an average increase in Texture Score of 45 points at 14 days. Compared to simple topical skincare, the utilization rate of direct dermal delivery increased more than 10-fold, and the financial cost of a single operation is over 60% more cost-effective than high-end annual skincare plans.