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AESCULUS HIPPOCASTANUM EXTRACT.

Valuable CAS 8053-39-2 / ANTIOXIDANT, ASTRINGENT, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SKIN PROTECTING

Horse Chestnut Extract (Aesculus Hippocastanum Extract) is a botanical active renowned for its multi-faceted benefits, including reducing the appearance of wrinkles, soothing irritated skin, and offering antioxidant protection. It is particularly effective for concerns like puffiness and redness, contributing to a more resilient and even-toned complexion.

soothing antioxidant skin conditioning anti-aging anti-redness anti-puffiness elasticity booster photoprotective

Science

The key active component, escin, functions as a venotonic agent that fortifies capillaries and decreases permeability by inhibiting enzymes like hyaluronidase and collagenase, thereby preventing fluid leakage and reducing redness. Additionally, it stimulates fibroblast contraction to enhance skin elasticity and provides robust antioxidant activity by scavenging active oxygen species.


Research

Medium confidence
Effective range 3–3%
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH 4.5 – 6
0 7 14

Stability

Most stable in acidic to neutral conditions (pH 4.5-6.0), typically used in the aqueous phase as a light to dark brown liquid. Incompatible with strong oxidizers.

Conflicts

  • strong oxidizing agents
  • highly alkaline environments

Safety

CIR Status
Safe as used
Max tested
1%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) has assessed horse chestnut-derived ingredients as safe in current practice, commonly used up to 1% in leave-on products. It is crucial to use a purified extract to ensure the exclusion of toxic aesculin found in raw seeds.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

With proven benefits for reducing wrinkles, redness, and puffiness, combined with antioxidant and photoprotective properties, this ingredient offers significant value for a range of skin concerns.


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References