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A-F grade per outcome, combining overall evidence with goal-specific relevance. A = strong evidence; F = insufficient. Hover a badge for details.
Topical use. Adapalene 0.1% (OTC) or 0.3% (prescription) gel/cream is applied as a thin layer to the whole affected area once daily, usually at night, starting every other day and building to nightly as tolerated. Full benefit takes ~8-12 weeks. There is no oral or systemic dose — it is not ingested. It is most effective combined with benzoyl peroxide. This library does not provide an ingestion protocol.
Evening
Adapalene 0.1% gel/cream (OTC), applied nightly to the whole area
Topical cosmetic only. Leave-on mandelic acid is used at roughly 5-10% in serums; professional peels use higher strengths (often a salicylic-mandelic combination). Apply to clean skin, building frequency as tolerated, with daily sunscreen. There is no oral or systemic dose — it is not ingested. This library does not provide an ingestion protocol.
Evening
Leave-on serum (≈5-10% mandelic acid) or a professional (salicylic-)mandelic peel
Throughout
8-12 weeks
Throughout
Throughout
8-12 weeks
8-12 weeks
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