An extract of horse chestnut, used as an antioxidant, astringent and conditioning ingredient.
What it is
Aesculus hippocastanum extract is an extract of horse chestnut, Aesculus hippocastanum, assigned in CosIng to the family Hippocastanaceae (now usually included in the soapberry family, Sapindaceae). The seeds of horse chestnut are known to contain escin, a mixture of saponins. CosIng lists it as an antioxidant, astringent, emollient, skin-conditioning and skin-protecting ingredient.
Where it is used
Found in creams, eye creams, gels, leg care products and shampoos.
Limits of interpretation
The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.
The INCI name does not reveal which part of the plant was used or the extraction method.
Functions
- Antioxidant
- Inhibiting reactions promoted by oxygen, thus avoiding oxidation and rancidity.
- Astringent
- Contracting and/or tightening the skin.
- Skin conditioning – emollient
- Acting as lubricants on the skin surface providing the skin with a soft and smooth appearance.
- Skin conditioning
- Maintaining the skin in good condition.
- Skin protecting
- Helping to avoid harmful effects to the skin from external factors.
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.

