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ingredient

Retinol

Vitamin A derivative that accelerates cell turnover, boosts collagen, and smooths wrinkles and pigmentation.

Evidence: strong

Retinol is a vitamin A derivative (retinoid) that speeds cell turnover, stimulates collagen synthesis, and normalizes pigmentation. It is the most evidence-backed anti-aging ingredient.

Overview

Retinol binds to retinoic acid receptors, accelerating epidermal turnover and stimulating dermal collagen. Start low (0.025-0.3%) and build tolerance.

Connected Concepts

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