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A salt of a succinoyl derivative of cystine, often used for its conditioning and hair strengthening properties.
Beneficial for
Safety summary
Generally considered safe for use in cosmetic formulations.
CAS Number
184830-08-8
1% line marker
This ingredient is commonly used as a marker to identify where ingredients drop below 1% concentration on the label.
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.