Fraxinus Excelsior (European Ash) Bark Extract is a plant-derived extract rich in coumarins (such as fraxin and esculin), flavonoids, and polyphenols, used in skincare for antioxidant, soothing, and skin-conditioning properties. It is often included for its potential to support skin barrier function and reduce oxidative stress.
| Reported effect | How often | Notes |
|---|---|---|
Contact irritation (redness, stinging) | Rare | Occasional mild irritation possible, generally in sensitive skin or at higher concentrations. |
Allergic contact dermatitis | Rare | Botanical extracts can act as sensitizers in predisposed individuals. |
Photosensitivity | Very rare | Coumarin-containing plant extracts have a theoretical potential to increase sun sensitivity, though not well documented for this ingredient. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.