Peanut Acid
AKA “Arachidic Acid, Arachis Hypogaea Acid”
Synthetic
Ingredient Facts
Peanut acid
AKA: Arachidic Acid, Arachis Hypogaea Acid
Synthetic · Emollient · EWG: 4
Plant-Derived Synthetic
Emollient
Cleanser
Skin Conditioner
Synthetic
Clean
Peanut oil gently cleanses skin while maintaining natural moisture. Derived from peanuts, this plant-based cleanser removes impurities without stripping.
CAS #
91051-35-3
Form
Liquid
See origin →
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Removes Impurities
Locks In Moisture
Traditional Use
Peanut acid is a fatty acid derived from peanut oil that has been used historically in traditional skincare for its emollient properties. Modern cosmetics use it as a skin-conditioning and texture-modifying ingredient.
Skin Types
●all-skin-types
Best For
Rough Texture
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: CosIng · EWG · CIR