Arctostaphylos Uva Ursi (bearberry) Leaf Extract is a plant-derived ingredient rich in arbutin, a naturally occurring hydroquinone derivative used in skincare to inhibit tyrosinase and reduce hyperpigmentation. It also provides antioxidant and mild astringent properties.
| Reported effect | How often | Notes |
|---|---|---|
| Mild skin irritation or stinging | Uncommon | More likely on sensitive or compromised skin or at higher concentrations. |
| Contact dermatitis or allergic sensitization | Rare | Possible in individuals sensitive to plant extracts or hydroquinone derivatives. |
| Erythema (redness) | Uncommon | Usually transient and concentration-dependent. |
| Paradoxical hyperpigmentation | Very rare | Theoretical concern linked to hydroquinone release from arbutin with prolonged or high-dose use. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.