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| Attribute | Cosmetic Peptide Nonapeptide-1 |
|---|---|
| Summary | Topical brightener that blocks melanin via MC1R antagonism. |
| Mechanism | Topical brightener that blocks melanin via MC1R antagonism. |
| Top outcomes |
|
| Evidence | emerging |
| Half-life | Not applicable |
| Administration | topical |
| Legal status | research only |
| Safety | Educational reference only. Long-term human safety varies; consult a peptide-literate clinician. |