Coptis Japonica Extract is a plant-derived extract rich in berberine and related alkaloids, used in skincare for its antioxidant, anti-inflammatory, and antimicrobial properties. It is often included to soothe irritation and address oily or acne-prone skin.
| Reported effect | How often | Notes |
|---|---|---|
| Mild skin irritation or redness | Uncommon | May occur in sensitive individuals or at higher concentrations. |
| Allergic contact dermatitis | Rare | Botanical extracts can occasionally trigger sensitization in predisposed users. |
| Itching or stinging on application | Rare | Typically transient and resolves with discontinuation. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.