Cysteine
Primary Function
Stabilizer
Health Score
7/10
Eco Score
5/10
Also Known As
L-cysteine, cystine
About Cysteine
An amino acid with antioxidant properties used in hair straightening treatments and anti-aging skincare for its keratin-supporting role.
Formulation Role & Skin Benefits
Cysteine is selected for formulations requiring protecting delicate active ingredients from degrading due to light, air, or heat, delivering ensuring your product works as effectively on the last day as the first.
Best suited for all skin types, essential for high-performance and antioxidant formulas. Typical formulation context: antioxidant serums, vitamin C formulas, retinol creams, and emulsions.
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