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A derivative of the amino acid proline, combined with palmitic acid, used to improve skin hydration and elasticity, and sometimes as a skin-lightening agent.
Beneficial for
Safety summary
Generally considered safe for cosmetic use.
CAS Number
59441-32-6
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.