Oligopeptide-34 is a synthetic peptide used in cosmetic formulations primarily for its proposed ability to inhibit melanin production and promote a more even skin tone. It is marketed as a skin-brightening and anti-pigmentation active.
| Reported effect | How often | Notes |
|---|---|---|
Mild skin irritation or redness | Uncommon | Transient localized irritation may occur, typically resolving after discontinuation. |
Contact dermatitis or allergic sensitization | Rare | Peptide ingredients can rarely provoke allergic reactions in sensitized individuals. |
Itching or stinging on application | Rare | Generally mild and short-lived, more likely on compromised skin. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.