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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 lactic acid is used at roughly 5-12% (lower for hydration, higher for exfoliation); professional peels use higher strengths. Apply to clean skin, often at night, 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 lotion or serum (≈5-12% lactic acid)

• For topical (skin) use only — not for ingestion, not for injection
• Pregnancy and breastfeeding — retinoids are generally avoided as a precaution
• Known allergy/sensitivity to adapalene or formulation excipients

• Other irritating actives (other retinoids, AHAs/BHAs)
• Benzoyl peroxide

• For topical (skin) use only — not for ingestion, not for injection
• Known allergy or sensitivity to AHAs
• Active eczema/dermatitis or broken/sunburned skin until healed

• Other leave-on actives (retinoids, other acids, benzoyl peroxide)