Evidence recordApplied to skin
Tretinoin
Answer
Well studied in relation to fine lines, mottled pigmentation and surface texture over months of use.
Check the formulaEvidence grade
Strong
Several consistent, relevant sources or an authoritative synthesis support this bounded claim.
Where it stops
Tretinoin is a prescription medicine in most countries, and irritation early on is the usual reason people stop. Someone who can see your skin should hold the plan.
Sources
Sources · 3
Source 1
Int J Womens Dermatol, 2022- Design
- Review of seven randomized controlled trials
- Measured outcome
- photoaging, wrinkling, mottled hyperpigmentation, sallowness, lentigines
Finding
Seven randomised controlled trials: all reported topical tretinoin improving the clinical appearance of photoaging (wrinkling, mottled hyperpigmentation, sallowness and lentigines) as early as 1 month, and still present after 24 months.
Source 2
Dermatol Pract Concept, 2025- Design
- Meta-analysis of eight trials
- Participants
- 1361
- Measured outcome
- fine wrinkles, coarse wrinkles
Finding
Meta-analysis of eight trials and 1,361 patients: topical tretinoin significantly improved both fine and coarse facial wrinkles from photodamage.
Source 3
J Am Acad Dermatol, 2024- Design
- Clinical guideline
- Measured outcome
- acne vulgaris
Finding
AAD acne guideline: strong recommendations for topical retinoids alongside benzoyl peroxide, topical antibiotics and oral doxycycline. Acne, not photoaging.