Horsetail (Equisetum arvense) leaf extract is a botanical ingredient rich in silica, flavonoids, and minerals, used in skincare for its antioxidant, astringent, and skin-conditioning properties. It is often included to support skin firmness and reduce the appearance of excess oil.
| Reported effect | How often | Notes |
|---|---|---|
Contact dermatitis / skin irritation | Uncommon | May occur in sensitive individuals, presenting as redness or itching at the application site. |
Allergic contact sensitization | Rare | Possible in those allergic to plants in the Equisetaceae family. |
Mild dryness or tightness | Uncommon | Related to the astringent action, especially in higher concentrations. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.