Cocoyl Proline Buono New ingredients Idratare Cocoyl Proline at a glance Mixture of coconut fatty acids + amino acid proline Works as a hydrator and conditioning agent Considered safe as used in cosmetics May be plant-derived or synthetic Cocoyl Proline description Cocoyl proline is a mixture of coconut fatty acids and the amino acid proline. This ingredient may be plant-derived (from coconuts) or synthetic. It functions in cosmetics as a hydrator and conditioning agent. It’s considered safe as used in cosmetics. Usage levels of cocoyl proline in cosmetics range from 0.1–5%, depending on formulary needs. Related ingredients: Amino Acids