Hierochloe Odorata (sweetgrass) extract is a plant-derived ingredient used in cosmetics for its antioxidant and skin-conditioning properties, attributed to coumarin and phenolic compounds. It is typically incorporated for soothing and protective effects rather than as a primary clinical treatment active.
| Reported effect | How often | Notes |
|---|---|---|
| Contact irritation (mild redness or stinging) | Rare | Possible in sensitive skin, generally with higher concentrations. |
| Allergic contact dermatitis | Rare | Botanical extracts may sensitize predisposed individuals; coumarin content is a potential allergen. |
| Photosensitivity | Very rare | Coumarin-containing plants can theoretically increase light sensitivity, though poorly documented for this extract. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.