Cyperus rotundus (nutgrass) extract is a botanical ingredient used in skincare for its reported antioxidant, anti-inflammatory, sebum-regulating and skin-brightening properties, and it is also studied for hair growth inhibition. It is typically derived from the tuber or rhizome of the plant.
| Reported effect | How often | Notes |
|---|---|---|
| Mild skin irritation or redness | Uncommon | Possible with sensitive skin or high concentrations; usually transient. |
| Allergic contact dermatitis | Rare | Botanical extracts can trigger sensitization in predisposed individuals. |
| Itching or stinging on application | Rare | Reported occasionally, generally resolving after discontinuation. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.