Tretinoin
Retinoic acid – the most active topical form of vitamin A. A prescription drug and the gold standard for topical anti-aging and acne treatment.
Evidence by route
Topical application
AProven efficacy. Two or more independent RCTs with instrumental endpoints.
Dozens of RCTs and meta-analyses confirm efficacy for photoaging, acne, and hyperpigmentation. Increases collagen synthesis, accelerates cell turnover, and normalizes desquamation. FDA-approved for acne and photodamage.
- Mukherjee S et al. Clin Interv Aging. 2006;1(4):327-348.
- Leyden JJ et al. J Am Acad Dermatol. 2017;76(6):AB4.
Working concentrations
0.025–0.1% (prescription drug)
How to introduce
Start at 0.025% every other day, gradually transitioning to daily use. Adaptation takes 6–12 weeks.
Tolerability and safety
Irritation potential
HighAllergen risk
LowPregnancy
AvoidFor sensitive skin
Retinoid dermatitis (peeling, redness, burning) is a normal adaptation response. Short-contact method (apply for 30 min, then rinse) helps reduce irritation.
Skin types
Suitable for
Use with caution
Combinations with other ingredients
Frequently asked questions
Is Tretinoin safe during pregnancy?
Tretinoin is not recommended during pregnancy. Consider an alternative from the same category.
What skin types is Tretinoin for?
Tretinoin suits: normal, combination, oily. Use with caution in: sensitive, dry.
Can Tretinoin irritate the skin?
Yes, Tretinoin has high irritation potential. Start at low concentrations, introduce gradually, and always use SPF during the day.