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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 OTC. Apply a broad-spectrum SPF 30+ sunscreen daily to sun-exposed skin as the last step of a morning routine, using an adequate amount (about 2 mg/cm² — roughly a nickel-sized dollop for the face, a shot-glass for the body) and reapply every ~2 hours of sun exposure and after swimming/sweating. Mineral (zinc oxide / titanium dioxide) filters are preferred if you're concerned about systemic absorption. There is no oral or systemic dose — it is not ingested. This library does not provide an ingestion protocol.

Morning

Broad-spectrum SPF 30+, applied daily; mineral (zinc oxide/titanium dioxide) if concerned about absorption

• 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
• Known allergy/sensitivity to a specific UV filter (switch to a mineral filter)

• Other leave-on actives