Aesculus Hippocastanum (horse chestnut) extract is derived from horse chestnut seeds and is rich in saponins such as aescin, valued in skincare for its anti-inflammatory, vasoprotective, and capillary-strengthening properties. It is commonly used in formulations targeting redness, puffiness, and the appearance of fragile or congested skin.
| Reported effect | How often | Notes |
|---|---|---|
| Skin irritation or stinging | Uncommon | Mild localized irritation may occur, more likely with sensitive skin or high concentrations of saponins. |
| Allergic contact dermatitis | Rare | Sensitization reactions have been reported, typically presenting as redness, itching, or rash. |
| Contact urticaria | Very rare | Isolated reports of hives following topical exposure. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.