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A hair conditioning and strengthening agent that penetrates the hair shaft to form new bonds within the keratin structure, improving hair's strength, elasticity, and resistance to damage.
Beneficial for
Safety summary
Generally considered safe and well-tolerated.
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.