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Topical cosmetic only. Argireline is typically formulated at 5-10% in leave-on serums, creams, or gels and applied to the target area (e.g., crow's-feet, forehead) twice daily. There is no oral, injectable, or systemic dose — it is not ingested. Concentration and formulation drive how much actually penetrates the skin. This library does not provide an ingestion protocol.

Any time

Leave-on topical cosmetic (serum, cream, or gel) at 5-10%

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
• Known allergy or sensitivity to the peptide or formulation excipients
• Application to broken, irritated, or compromised skin until healed

• Other topical actives (retinoids, acids)
• Injectable botulinum toxin (BoNT)

• 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