Skin by Decade: What Skin Needs in Your 20s, 30s, and 40s

Skin Does Not Age Overnight, It Accumulates

Skin aging is not a single event. It is the visible accumulation of biology, environment, expression, hormones, lifestyle, and time.

Collagen changes slowly. Elastic fibers change slowly. UV exposure compounds silently. Repeated facial movement folds the same areas thousands of times. Hydration fluctuates daily. Pigment pathways respond to inflammation and sun. Barrier function can be strengthened or weakened by the routine. Hormonal changes can influence dryness, thickness, collagen content, and elasticity.

That is why skincare by decade is not about treating age as a diagnosis. It is about understanding what the skin is most likely to need at each stage — and what can be preserved before it becomes harder to correct.

The 20s are about prevention, collagen banking, and consistency.
The 30s are about early correction, treatment timing, and maintenance.
The 40s are about firmness, texture, volume support, recovery, and more deliberate procedures.

Botox, filler, Sculptra, lasers, peels, microneedling, RF microneedling, IPL, BBL, facials, and skin-tightening treatments can all have a role when used appropriately. But the foundation is skin quality: hydration, texture, radiance, firmness, tone, barrier resilience, and the ability of skin to recover from stress.

The point is not to do more each decade.

The point is to become more precise.

What Changes in Skin Over Time?

Skin changes through two overlapping processes: intrinsic aging and extrinsic aging.

Intrinsic aging is the natural, genetically influenced aging of skin over time. It is associated with changes in collagen, elastin, hydration, thickness, and repair capacity. A review on collagen and elastin in cutaneous aging describes intrinsic aging as involving dermal atrophy from collagen loss, degeneration of the elastic fiber network, and loss of hydration. [1]

Extrinsic aging is driven by external factors, especially ultraviolet radiation. UV exposure can increase matrix metalloproteinases, enzymes that degrade collagen and contribute to the collagen fragmentation seen in photoaged skin. Human skin studies have shown UV-induced increases in collagen-degrading enzymes, including MMP-1 and MMP-8. [2,3]

This distinction matters because some aging is biological, but much of visible aging is modifiable.

Daily sunscreen has some of the strongest evidence in cosmetic dermatology. In a randomized trial, daily sunscreen use showed no detectable increase in skin aging after 4.5 years and resulted in 24% less skin aging compared with discretionary sunscreen use. [4]

Topical retinoids also have meaningful evidence. In photodamaged human skin, topical tretinoin has been shown to increase collagen I formation and improve visible photodamage, fine wrinkling, and roughness over time. [5,6]

The science is clear: the earlier the routine supports photoprotection, hydration, barrier function, and collagen-preserving behaviors, the better the skin is positioned for every decade that follows.

The Decade Principle

Your skin does not need a completely different identity every ten years. It needs a routine that evolves.

Age is not the only factor. Genetics, skin tone, sun exposure, acne history, smoking, sleep, stress, hormones, pregnancy, medications, and prior procedures all influence what the skin needs.

But decade-based guidance is useful because it shows the shift in strategy.

In the 20s, the work is protection.
In the 30s, the work is pattern recognition.
In the 40s, the work is more layered maintenance.

What Skin Needs in Your 20s

The 20s are not too early to care about skin aging. They are too early to panic about it.

At this stage, collagen and elastin are still relatively supportive, healing is generally faster, and many visible signs of aging are subtle. The most important work is reducing avoidable damage and building a routine the skin can tolerate for years.

This is also the decade where collagen banking begins to make sense.

Collagen banking means supporting collagen before visible loss becomes advanced. It does not mean over-treating young skin. It means protecting existing collagen, reducing avoidable collagen breakdown, and considering collagen-supportive treatments thoughtfully when appropriate.

The major mistake in the 20s is treating prevention like correction. Skin does not need to be attacked early. It needs to be protected early.

The Science of Skin in Your 20s

The most consequential aging exposure in the 20s is often UV radiation. UV exposure contributes to collagen degradation, pigment changes, rough texture, and earlier wrinkling through oxidative stress and matrix metalloproteinase activation. [2,3]

This is why sunscreen is not optional in a decade of prevention. The randomized sunscreen trial by Hughes et al. showed that daily sunscreen use slowed visible skin aging over years, making photoprotection one of the most evidence-backed interventions in skin preservation. [4]

Acne, post-inflammatory pigmentation, barrier disruption, and dehydration may also be major concerns in the 20s. These are not always “anti-aging” problems, but they affect skin quality. Skin that is inflamed, over-exfoliated, or chronically dehydrated will not look as healthy or resilient as skin that is consistently supported.

Skincare Priorities in Your 20s

The 20s routine should focus on:

• Daily broad-spectrum sunscreen

• Hydration

• Barrier support

• Gentle cleansing

• Antioxidant support, when tolerated

• Retinoids or retinol when appropriate and tolerated

• Acne or pigmentation treatment when needed

• Early targeted care for expression-prone areas if fine lines begin to appear

• Avoiding over-exfoliation

The routine should not be maximal. It should be consistent.

This is the decade to stop thinking of skincare as a response to problems and start thinking of it as maintenance.

Aesthetic Procedures in Your 20s

Procedures in the 20s should be conservative, individualized, and prevention-focused.

Botox may be appropriate for some people in their 20s, especially if expression lines begin to linger at rest or if a person has very strong repetitive movement in areas like the forehead, between the brows, or around the eyes. A PubMed-indexed evidence-based review on cosmetic botulinum toxin in young adults notes growing use in younger patients and emphasizes individualized treatment rather than age alone. [7]

That does not mean everyone in their 20s needs Botox. They do not.

Filler should also be approached with restraint. In the 20s, filler is often less about age-related volume loss and more about proportion, contour, asymmetry, or anatomy — for example, subtle lip enhancement, chin support, or balancing facial features. The risk is overcorrection: treating a face that does not need structural replacement as if it does.

Collagen banking may include light, controlled treatments when appropriate. The goal is not aggressive resurfacing. It is support.

Relevant procedures may include:

• Botox for early expression lines in appropriate candidates

• Subtle hyaluronic acid filler for anatomy, proportion, or contour, not unnecessary volume replacement

• Clear + Brilliant or other gentle fractional lasers for early texture, tone, and radiance

• IPL or BBL photofacial treatments for sun spots, redness, and early photodamage

• Microneedling for texture, acne marks, and collagen support

• Light chemical peels for congestion, tone, surface smoothness, and acne-prone skin

• Hydrating or clarifying facials for maintenance, barrier support, and skin quality

Sculptra and other biostimulatory injectables may occasionally be discussed in younger patients, but they should be used selectively. In the 20s, most patients do not need broad volume replacement or global biostimulation. If collagen-stimulating injectables are considered, the goal should be subtle support in the right candidate, not visible alteration.

The goal in the 20s is precision, not intensity.

What Skin Needs in Your 30s

The 30s are when many people begin to see the difference between skin that is simply young and skin that is well maintained.

Fine lines may become more visible. Pigmentation may linger longer. Texture may feel less smooth. The eye area may look more tired. Lips may show early fine lines or less definition. Makeup may not sit the same way it did before. Recovery from late nights, stress, travel, sun, or inflammation may take longer.

This is the decade where maintenance becomes more active.

The Science of Skin in Your 30s

By the 30s, cumulative sun exposure and repeated movement often begin to show more clearly. Photoaging is not only a surface issue; it involves dermal matrix changes, collagen fragmentation, and altered fibroblast function. Studies of photodamaged human skin have shown elevated matrix metalloproteinases and collagen fragmentation, which can impair dermal fibroblast function and contribute to the visible architecture of aged skin. [8]

This is also the decade when many people start noticing static lines — lines visible even when the face is relaxed. Botox is best suited to dynamic lines, the lines formed by muscle movement. Static lines may still respond to Botox over time, but they also require support for hydration, texture, and dermal quality.

The 30s are not about reversing aging. They are about preventing small patterns from becoming larger ones.

Skincare Priorities in Your 30s

The 30s routine should build on the 20s foundation and become more targeted.

Key priorities include:

• Daily sunscreen

• Hydration and barrier support

• Retinoids or retinol, when appropriate and tolerated

• Antioxidants and pigment support

• Texture refinement

• Targeted eye-area care

• Targeted lip care

• Fine-line support in expression-prone areas

• Consistent product use before, between, and after treatments

This is also when treatment-aware skincare becomes especially relevant. Someone in their 30s may be getting Botox, considering filler, doing lasers or peels, and using active skincare at home. The routine has to understand timing.

A retinoid may be useful in the long-term routine, but not immediately after certain procedures. Exfoliation may help texture, but not when the barrier is compromised. A laser may improve pigment and texture, but daily sunscreen determines whether that improvement is protected.

Aesthetic Procedures in Your 30s

The 30s are when aesthetic procedures often become more strategic.

Botox may become more relevant for forehead lines, frown lines, and crow’s feet, especially when expression lines begin to remain visible at rest. The goal is not to freeze the face. It is to soften repetitive movement before lines become more deeply etched.

Filler may also become more useful in the 30s, but the best results are usually subtle. Small amounts of hyaluronic acid filler may help support lips, cheeks, under-eyes, chin, jawline, temples, or nasolabial folds depending on anatomy and goals. The purpose is not to change the face. It is to restore balance or refine structure with restraint.

This is also a decade where Sculptra, or injectable poly-L-lactic acid, may enter the conversation for patients who want gradual collagen stimulation rather than immediate hyaluronic acid volume. Poly-L-lactic acid is discussed in the literature as a collagen stimulator used in facial rejuvenation, and expert recommendations describe PLLA as a collagen-stimulating treatment that can be combined with other modalities. [11] Sculptra is not the same as traditional filler. It is slower, more gradual, and intended to support collagen over time.

Procedures that may be relevant in the 30s include:

• Botox for expression lines

• Hyaluronic acid filler for subtle contour, lip, cheek, under-eye, chin, jawline, temple, or fold support

• Sculptra / PLLA for gradual collagen stimulation in appropriate candidates

• Fraxel or 1550/1927 nm fractional lasers for texture, pigment, pores, and early photodamage

• Clear + Brilliant for lighter maintenance, glow, and early texture

• IPL or BBL for redness, sun spots, and pigment irregularity

• Microneedling for acne scars, texture, and collagen support

• RF microneedling for texture, firmness, acne scars, and early laxity

• Light to medium chemical peels for pigment, texture, congestion, and radiance

• Medical-grade facials for hydration, clarity, and maintenance between more active treatments

The 30s are where treatment timing matters. A laser may improve tone and texture, but the barrier needs recovery. Botox may soften movement, but the skin still needs hydration and targeted fine-line support. Filler may refine contour, but it cannot fix dullness, roughness, or dehydration.

The routine has to support the procedure.

What Skin Needs in Your 40s

The 40s are when skin maintenance usually becomes more structural.

Fine lines may deepen. Texture may become less even. Pigment may be more visible. Skin may feel drier or less resilient. The jawline, cheeks, under-eyes, lips, and neck may begin to show more obvious changes. Recovery may take longer. The same routine that worked in the 30s may no longer be enough.

For many women, the 40s may also overlap with perimenopause, when hormonal changes can begin affecting skin. Estrogen influences collagen, skin thickness, hydration, and elasticity. Reviews of estrogen and aging skin report that estrogen-deficient states are associated with reduced skin thickness, collagen content, hydration, and elasticity. [9,10]

This is not a reason to panic. It is a reason to become more deliberate.

The Science of Skin in Your 40s

In the 40s, intrinsic aging, cumulative UV exposure, and hormonal change may begin to converge.

Collagen fragmentation, reduced collagen synthesis, elastin changes, and reduced hydration can all contribute to wrinkles, laxity, roughness, and reduced skin resilience. Photoaging continues to be a major driver of visible change, especially in areas with high sun exposure. [1,8]

Hormonal changes can also become more relevant. In estrogen-deficient skin, studies and reviews have described decreases in skin thickness and collagen content, with one review noting skin thickness may decrease by approximately 1.13% per postmenopausal year and collagen content by approximately 2% per postmenopausal year. [9] This does not mean every woman experiences the same changes at the same age, but it helps explain why some patients notice a more accelerated shift in dryness, firmness, and elasticity around this period.

The 40s are where the skin often needs both preservation and correction.

Skincare Priorities in Your 40s

The 40s routine should focus on:

• Daily sunscreen

• Consistent hydration

• Barrier repair and comfort

• Retinoids or retinol, when appropriate and tolerated

• Firmness support

• Texture and radiance

• Pigment management

• Targeted eye care

• Targeted lip care

• Support before and after procedures

• Recovery-aware product timing

The barrier becomes more important in this decade. Skin that is drier, thinner, or more reactive cannot tolerate the same level of aggression indefinitely. More active ingredients do not always equal better skin.

A precise routine may outperform a crowded one.

Aesthetic Procedures in Your 40s

Procedures in the 40s often become more layered because the concerns are more layered.

Botox may remain useful for expression lines, but static lines and texture changes may require additional support. Hyaluronic acid filler may be used more strategically for cheeks, temples, under-eyes, jawline, chin, lips, or folds depending on facial structure and goals. The focus is often support and balance, not visible volume.

Sculptra may become especially relevant in the 40s for patients seeking gradual collagen support and global improvement in firmness or facial quality over time. Poly-L-lactic acid is not an instant filler; it works through biostimulation and requires patience, appropriate technique, and the right candidate. Expert recommendations describe PLLA as a collagen stimulator used for facial rejuvenation, and recent PubMed-indexed research discusses its role in sustained soft-tissue formation and skin firming effects. [11,12]

Energy and resurfacing procedures may also become more important.

Relevant procedures in the 40s may include:

• Botox for forehead lines, frown lines, crow’s feet, chin dimpling, neck bands, or masseter treatment when appropriate

• Hyaluronic acid filler for strategic volume, contour, lip support, cheek support, under-eye hollowing, chin, jawline, temple support, or folds

• Sculptra / PLLA for gradual collagen stimulation and longer-term biostimulatory support

• Fraxel / fractional lasers for pigment, texture, pores, photodamage, and collagen remodeling

• CO2 laser resurfacing for more advanced texture, etched lines, photodamage, and resurfacing needs in the right candidate

• IPL / BBL for pigment, redness, vascular changes, and sun damage

• RF microneedling for texture, firmness, acne scars, and early laxity

• Thermage or other radiofrequency skin-tightening treatments for firmness and collagen support

• Ultherapy or ultrasound-based tightening for lifting and tightening in appropriate candidates

• Chemical peels for pigment, texture, and surface renewal

• Medical-grade facials for hydration, barrier support, clarity, and maintenance

This is also the decade when heavier resurfacing treatments such as fractional or fully ablative CO2 laser may enter the conversation. CO2 resurfacing can be powerful for deeper texture changes, etched lines, and photodamage, but it requires more downtime, stricter aftercare, and careful patient selection. Fractional CO2 literature describes it as an effective skin rejuvenation treatment, and ablative resurfacing is used for photoaging, scars, and facial wrinkles. [13,14]

RF microneedling may also become more relevant in the 40s. A PubMed-indexed review notes that radiofrequency microneedling has evidence across dermatologic uses and is frequently discussed for remodeling and collagen-supportive effects. [15]

The 40s are not about doing everything. They are about matching the right procedure to the right concern: movement, volume, collagen support, pigment, texture, firmness, or barrier recovery.

What Skin Needs at Every Decade

The details change, but the fundamentals do not.

1. Sunscreen

Daily photoprotection is the most evidence-backed prevention strategy. UV exposure contributes to collagen breakdown, pigment changes, rough texture, and wrinkles. Daily sunscreen use has been shown in a randomized trial to slow visible skin aging. [4]

2. Hydration

Hydration affects comfort, barrier function, texture, light reflection, and the appearance of fine lines. It matters in every decade.

3. Barrier Support

A strong barrier allows skin to tolerate actives and procedures. A compromised barrier makes skin more reactive and less resilient.

4. Targeted Treatment

The eyes and lips do not behave like the rest of the face. They are high-movement, high-visibility areas where fine lines, dryness, and definition changes often appear first.

5. Procedure Timing

Botox, filler, Sculptra, lasers, peels, microneedling, RF microneedling, IPL, BBL, and facials all have roles, but timing matters. The right procedure at the wrong time can still be the wrong choice.

6. Consistency

Skin quality is cumulative. A routine works best when it is repeated, tolerated, and aligned with the procedures a person is getting.

Where DR. MARNIE Fits in a Skin-by-Decade Routine

DR. MARNIE was developed for the way skin is maintained over time: before, between, and after aesthetic treatments, and through the daily routine that supports skin quality as it changes.

The role of the routine evolves by decade, but the foundation stays consistent. Skin needs hydration, smoothness, texture support, radiance, targeted care for expression-prone areas, and lip maintenance long before those concerns become advanced. The difference is emphasis.

In the 20s, the focus is preservation. Facial Serum supports the hydration, radiance, and texture that help skin look healthy and well cared for early. Wrinkle Pen can be used as targeted support where early expression lines begin to appear, including around the eyes, crow’s feet, forehead, between the brows, smile lines, and other high-movement zones. Lip Serum supports daily lip hydration, smoothness, definition, and visible volume.

In the 30s, the routine becomes more targeted. Botox, subtle filler, Sculptra, lasers, peels, microneedling, RF microneedling, IPL/BBL, and facials may become more relevant depending on the person, but the at-home routine has to support the skin between those appointments. Wrinkle Pen helps support the look of fine lines and wrinkles in expression-prone areas. Facial Serum supports full-face hydration, radiance, and texture. Lip Serum supports lip fine lines, hydration, nourishment, definition, and visible volume.

In the 40s, the routine becomes more comprehensive. Skin may need more support for firmness, texture, hydration, recovery, and targeted areas like the eyes and lips. Procedures may become more layered, but the daily routine still supports the visible quality of the skin that carries those results.

Facial Serum supports the overall look and feel of maintained skin. In a 4-week clinical study, 100% of subjects saw an instant improvement in hydration, 97% showed improvement in skin hydration after 4 weeks, 79% showed improvement in skin radiance/luminance after 4 weeks, and 76% showed improvement in skin texture after 4 weeks.**

Wrinkle Pen supports targeted areas where fine lines and expression-related changes are most visible. In a 4-week clinical study, 100% of subjects showed improvement in the look of fine lines and wrinkles.** In consumer perception testing, 90% agreed fine lines and crow’s feet around the eyes were less visible, 90% agreed the eye area appeared firmer, and 90% agreed eyes looked well-rested and refreshed.*

Lip Serum supports the visible architecture of the lip surface between appointments, including fine lines, smoothness, hydration, nourishment, definition, and visible volume. In a 4-week clinical study, 97% showed improvement in lip fine lines and 87% showed improvement in lip volume.** In consumer perception testing, 90% said lips looked smoother and more nourished, and 87% agreed lips felt more hydrated.*

The goal is not to use more products every decade. It is to use the right routine consistently, so skin looks supported as its needs change.

The Treatment-Aware Routine by Decade

The goal is not to assign every person the same plan based on age.

The goal is to understand what skin is likely to need — and to build a routine before the skin has to overcorrect.

FAQ

What skincare should I use in my 20s?

In your 20s, prioritize daily sunscreen, hydration, barrier support, gentle cleansing, and consistency. If early expression lines, acne marks, pigmentation, or texture appear, targeted treatment may be appropriate. Botox, light lasers, microneedling, peels, or facials should be individualized, not automatic.

What is collagen banking?

Collagen banking is the idea of supporting and preserving collagen before visible loss becomes advanced. In practice, it usually means daily sunscreen, consistent skincare, retinoids when appropriate, antioxidant support, and selective collagen-supportive procedures such as light lasers or microneedling when recommended by a qualified provider. It should be individualized and conservative, especially in younger skin.

What skincare should I use in my 30s?

In your 30s, focus on sunscreen, hydration, radiance, texture, fine lines, eye-area care, and lip maintenance. This is also when many people begin Botox, subtle filler, Sculptra in appropriate candidates, lasers, peels, microneedling, or facials, so the routine should be treatment-aware.

What skincare should I use in my 40s?

In your 40s, skin often needs more support for hydration, firmness, texture, radiance, barrier resilience, eyes, and lips. Procedures may become more layered, including Botox, filler, Sculptra, lasers, RF microneedling, CO2 resurfacing, skin-tightening treatments, peels, and facials depending on goals.

When should I start Botox?

There is no universal age to start Botox. It may be appropriate when expression lines begin to linger at rest or when strong repetitive movement is creating visible lines. A board-certified dermatologist or qualified injector should assess your anatomy and goals.

When should I start filler?

Filler should be based on anatomy and goals, not age alone. In younger patients, filler may be used for proportion or contour. In the 30s and 40s, it may be used more for volume shifts, support, or facial balancing. Restraint is essential.

What is the difference between filler and Sculptra?

Hyaluronic acid filler typically provides more immediate volume or contour support. Sculptra, or poly-L-lactic acid, is a biostimulatory injectable that works more gradually by stimulating collagen over time. The right choice depends on anatomy, goals, timeline, and provider guidance.

Do I need lasers in my 20s or 30s?

Not necessarily. Lasers can be useful for pigment, redness, acne marks, texture, pores, or photodamage, but they are not required by age. The right treatment depends on skin type, concern, timing, and provider guidance.

When does CO2 laser make sense?

CO2 laser resurfacing may be considered for more advanced texture changes, etched lines, photodamage, and resurfacing needs in the right candidate. It requires more downtime and careful aftercare than lighter lasers, so it should be discussed with an experienced provider.

Does skin change more in your 40s?

For many people, yes. The 40s can bring more visible changes in firmness, texture, hydration, and recovery. Hormonal shifts around perimenopause may also influence collagen, dryness, and elasticity.

Can skincare replace procedures?

No. Skincare cannot replace Botox, filler, Sculptra, lasers, peels, or energy-based treatments. It can support hydration, texture, radiance, fine lines, lips, eyes, and the visible quality of skin between procedures.

What is treatment-aware skincare by decade?

Treatment-aware skincare by decade means adjusting the routine based on both skin biology and the treatments a person may be receiving. In the 20s, it emphasizes prevention and collagen banking. In the 30s, maintenance and early correction. In the 40s, firmness, recovery, and more deliberate support.

References and Study Footnotes

[1] Uitto J. The role of elastin and collagen in cutaneous aging. Journal of Drugs in Dermatology. 2008;7(2 Suppl):s12-s16. PMID: 18404866.

[2] Brennan M, Bhatti H, Nerusu KC, et al. Matrix metalloproteinase-1 is the major collagenolytic enzyme responsible for collagen damage in UV-irradiated human skin. Photochemistry and Photobiology. 2003;78(1):43-48. PMID: 12929747.

[3] Fisher GJ, Wang ZQ, Datta SC, et al. Ultraviolet irradiation increases matrix metalloproteinase-8 protein in human skin in vivo. Journal of Investigative Dermatology. 2001;117(2):219-226. PMID: 11511297.

[4] Hughes MCB, Williams GM, Baker P, Green AC. Sunscreen and prevention of skin aging: a randomized trial. Annals of Internal Medicine. 2013;158(11):781-790. PMID: 23732711.

[5] Griffiths CEM, Russman AN, Majmudar G, et al. Restoration of collagen formation in photodamaged human skin by tretinoin. New England Journal of Medicine. 1993;329(8):530-535. PMID: 8336752.

[6] Gilchrest BA. Treatment of photodamage with topical tretinoin: an overview. Journal of the American Academy of Dermatology. 1997;36(3 Pt 2):S27-S36. PMID: 9091506.

[7] Michon A. Botulinum toxin for cosmetic treatments in young adults: an evidence-based review and survey on current practice among aesthetic practitioners. Journal of Cosmetic Dermatology. 2023;22(1):128-139. PMID: 36445847.

[8] Quan T, Qin Z, Xia W, et al. Elevated matrix metalloproteinases and collagen fragmentation in photodamaged human skin: impact of altered extracellular matrix microenvironment on dermal fibroblast function. Journal of Investigative Dermatology. 2013;133(5):1362-1366. PMID: 23466932.

[9] Stevenson S, Thornton J. Effect of estrogens on skin aging and the potential role of SERMs. Clinical Interventions in Aging. 2007;2(3):283-297. PMID: 18044179.

[10] Thornton MJ. Estrogens and aging skin. Dermato-Endocrinology. 2013;5(2):264-270. PMID: 24194966.

[11] Alessio R, Rzany B, Eve L, Grangier Y, Herranz P, Olivier-Masveyraud F. European expert recommendations on the use of injectable poly-L-lactic acid for facial rejuvenation. Journal of Drugs in Dermatology. 2014;13(9):1057-1066. PMID: 25226006.

[12] Angelo-Khattar M, et al. Poly-L-Lactic Acid in Facial Rejuvenation: Volumetric Data and Skin Firming Effects. 2025. PMID: 41488550.

[13] Levy T, et al. Expert Consensus on Clinical Recommendations for Fractional Ablative CO2 Laser. 2025. PMID: 39434507.

[14] Ramsdell WM. Fractional Carbon Dioxide Laser Resurfacing. Seminars in Plastic Surgery. 2012;26(3):125-130. PMID: 23060704.

[15] Tan MG, Jo CE, Chapas A, Khetarpal S, Dover JS. Radiofrequency Microneedling: A Comprehensive and Critical Review. Dermatologic Surgery. 2021;47(6):755-761. PMID: 33577211.

[16] Weiss RA, Weiss MA, Beasley KL. Rejuvenation of photoaged skin: 5 years results with intense pulsed light of the face, neck, and chest. Dermatologic Surgery. 2002;28(12):1115-1119. PMID: 12472489.

*Based on a 4-week consumer perception study of 30 female subjects using the product as directed. Results reflect subjects who agreed or strongly agreed after 4 weeks of use.

**Facial Serum: Based on a 4-week clinical study of 29 female subjects using the product once daily in the morning. Hydration was measured by Corneometer®; skin texture and radiance/luminance were measured by VISIA® CR imaging and ImagePro® image analysis.

**Wrinkle Pen: Based on a 4-week clinical study of 30 female subjects using the product morning and evening. Eye-area fine lines and wrinkles were measured by VISIA® CR imaging and ImagePro® image analysis.

**Lip Serum: Based on a 4-week clinical study of 30 female subjects using the product each morning and throughout the day as needed. Lip fine lines and lip volume were measured by digital imaging and ImagePro® image analysis.

This article is for educational purposes and does not constitute medical advice. For personalised skincare guidance, consult a board-certified dermatologist.