Hydrolyzed Oxidized Keratin
AKA “Oxidized Keratin Hydrolysate, Hydrolyzed Oxidized Keratin Protein”
Synthetic
Ingredient Facts
Hydrolyzed oxidized keratin
AKA: Oxidized Keratin Hydrolysate, Hydrolyzed Oxidized Keratin Protein
Synthetic · Hair Conditioning · EWG: 4
Plant-Derived Synthetic
Skin Conditioner
Hair Care
Synthetic
Clean
Keratin is a natural protein that strengthens and softens both hair and skin, helping to improve texture and reduce frizz while enhancing smoothness.
CAS #
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Form
Liquid
See origin →
Functions
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
Keratin protein was first identified and isolated in the 19th century. The hydrolyzed and oxidized forms were developed in the 20th century specifically for cosmetics to provide hair and skin conditioning without traditional historical use.
Skin Types
●all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: CosIng · EWG · CIR