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Retinoids & alternatives in skincare — what they do

Quick answer: Retinoids support skin renewal and the look of firmness over time. Introduce slowly at night and always pair with daytime SPF.

Retinoids support skin renewal and the look of firmness over time. Introduce slowly at night and always pair with daytime SPF.

5 retinoids & alternatives in the K-beauty INCI decoder

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✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed 2026-06-21.

General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.