Pigmentation·Dry skin·35–44
Based on clinical research, people with dry skin showing pigmentation, age 35–44 using Vitamin C (L-ascorbic acid) over 60 days reported:
Protocol referenced: Vitamin C serum (L-ascorbic acid 10–15%) used daily AM, paired with mineral SPF.
- Brightness / luminosity+30%
- Pigmentation marker score−18%
Source: Pooled review of vitamin C topical RCTsIndividual results vary
Citation · Pullar JM, Carr AC, Vissers MCM. The roles of vitamin C in skin health. Nutrients. 2017;9(8):866.
Clearer skin (acne)·Combination skin·25–34
Based on clinical research, people with combination skin with acne, age 25–34 using Niacinamide (Vitamin B3) over 84 days reported:
Protocol referenced: Niacinamide serum (4–5%) twice daily, layered with a non-comedogenic moisturizer and mineral SPF.
- Inflammatory lesion count−30%
- Barrier function (TEWL)+24%
Source: Randomized controlled trialIndividual results vary
Citation · Bissett DL, Oblong JE, Berge CA. Niacinamide: a B vitamin that improves aging facial skin appearance. Dermatol Surg. 2005;31(7 Pt 2):860-865.
Aging signs·Sensitive skin·45–54
Based on clinical research, people with sensitive aging skin, age 45–54 using Encapsulated retinol over 120 days reported:
Protocol referenced: Encapsulated retinol 0.2–0.3% PM twice weekly, layered into a ceramide moisturizer.
- Fine line / wrinkle score−22%
- Skin texture grading+20%
Source: Review of retinoid clinical evidenceIndividual results vary
Citation · Mukherjee S, Date A, Patravale V, et al. Retinoids in the treatment of skin aging. Clin Interv Aging. 2006;1(4):327-348.
Sensitivity·Sensitive skin·25–34
Based on clinical research, people with sensitive reactive skin, age 25–34 using Centella asiatica / madecassoside over 45 days reported:
Protocol referenced: Centella asiatica / madecassoside serum daily AM + PM, paired with a fragrance-free ceramide moisturizer.
- Erythema (redness) score−27%
- Barrier comfort / TEWL+30%
Source: Clinical evaluation in cosmetic dermatologyIndividual results vary
Citation · Bylka W, Znajdek-Awiżeń P, Studzińska-Sroka E, Brzezińska M. Centella asiatica in cosmetology. Postepy Dermatol Alergol. 2013;30(1):46-49.
Dehydration·Dry skin·18–24
Based on clinical research, people with dry dehydrated skin, age 18–24 using Hyaluronic acid (multi-weight) over 30 days reported:
Protocol referenced: Multi-weight hyaluronic acid serum AM + PM, sandwiched with glycerin-rich moisturizer.
- Stratum corneum hydration+40%
- Visible plumpness grading+30%
Source: Review of hyaluronic acid in skin agingIndividual results vary
Citation · Papakonstantinou E, Roth M, Karakiulakis G. Hyaluronic acid: a key molecule in skin aging. Dermatoendocrinol. 2012;4(3):253-258.
Pigmentation·Oily skin·25–34
Based on clinical research, people with oily acne-prone skin with pigmentation, age 25–34 using Azelaic acid over 90 days reported:
Protocol referenced: Azelaic acid 10% PM nightly, paired with a barrier-supportive moisturizer and daily SPF.
- Tone evenness grading+28%
- Inflammatory lesion count−22%
Source: Review of azelaic acid mechanism and clinical useIndividual results vary
Citation · Sieber MA, Hegel JK. Azelaic acid: properties and mode of action. Skin Pharmacol Physiol. 2014;27 Suppl 1:9-17.
About these references
Every card above is drawn from peer-reviewed clinical research, with the citation attached. We do not report fabricated member counts. The Skinlumis network is in early access, aggregated member outcome data will appear separately in the Ingredient Outcomes search above as our consented dataset grows. Educational reference only, individual results vary; this is not medical advice.