Hair keratin is an α-scleroprotein whose strength is based on disulfide bonds (S–S) between cysteine residues. In cosmetics, only hydrolyzed keratin — fragmented into peptides of 300 to 10,000 Da — can act on the fiber. Hairswiss explains the exact chemistry, mechanisms of action, and real limits of this essential active ingredient.
Tag: keratin
keratin
Hydrolyzed Keratin and Macadamia Oil: Molecular Complementarity on the Hair Fiber
Hydrolyzed keratin (peptides 300–10,000 Da) and macadamia oil (60–85% palmitoleic acid ω-7, rare in cosmetics) form a complementary formulation association: the protein fills cuticle gaps, the oil reconstitutes the surface lipid film. Hairswiss analyzes their mechanisms of action and synergy on degraded hair fibers.