Fraxinus excelsior (European ash) bark extract is a plant-derived botanical used in skincare for its antioxidant, soothing, and astringent properties, attributed to constituents such as coumarins, flavonoids, and tannins. It is typically included to support skin conditioning and protect against environmental oxidative stress.
| Reported effect | How often | Notes |
|---|---|---|
Contact irritation | Rare | Mild redness or stinging possible, more likely in sensitive skin or at higher concentrations. |
Allergic contact dermatitis | Rare | Botanical extracts can occasionally sensitize predisposed individuals. |
Cross-reactivity in plant-allergic individuals | Very rare | Theoretical risk in those sensitized to related botanical species. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.