Salix Nigra (black willow) bark extract is a botanical ingredient containing salicin and tannins, used in skincare for its mild astringent, soothing, and conditioning properties. It is sometimes promoted as a natural source of salicylic-acid precursors, though the actual salicylic acid content is low.
| Reported effect | How often | Notes |
|---|---|---|
Skin irritation or redness | Uncommon | May occur in sensitive skin, partly due to tannin and salicin content. |
Contact dermatitis | Rare | Allergic or irritant reactions possible, especially in individuals sensitive to salicylates. |
Salicylate sensitivity reaction | Rare | Caution advised for those with aspirin/salicylate allergy. |
Dryness or mild stinging | Uncommon | Related to its astringent action in higher concentrations. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.