Ingredient
Retinol
Retinol is a vitamin A derivative that converts to retinoic acid in the skin, boosting collagen production, accelerating cell turnover, and treating both acne and signs of aging. It's the most studied anti-aging ingredient in dermatology.
Evidence Level
Well-established. Prescription retinoids (tretinoin) have 40+ years of clinical data. OTC retinol is less potent but still effective — it just takes longer (12-24 weeks vs 8-12 for prescription).
132 products with retinol
In Catalog
132