Keratin amino acids

Also known as Keratin amino acids — this name points to Keratin Peptides in our directory.

About Keratin Peptides

Broken-down keratin protein fragments that coat and reinforce damaged hair shafts.

Hydrolyzed keratin peptides are small enough to penetrate the cuticle and fill gaps in damaged hair. They improve feel and reduce breakage rather than growing new follicles. Common in bond-repair and smoothing lines.

Read the full peptide profile →

Where you will see Keratin amino acids

Keratin amino acids is a marketing or trade name people search when they mean Keratin Peptides. On retail shelves the INCI list on the back of the package may use a longer systematic name even when the front label shows a nickname.

Other names

Hydrolyzed keratin Keratin amino acids Keratin-derived peptides

Common questions

Is Keratin amino acids the same as Keratin Peptides?

Yes. Keratin amino acids is a brand or nickname that refers to Keratin Peptides in our directory—the same active molecule, different packaging or marketing name.

What is Keratin Peptides?

Broken-down keratin protein fragments that coat and reinforce damaged hair shafts. Hydrolyzed keratin peptides are small enough to penetrate the cuticle and fill gaps in damaged hair. They improve feel and reduce breakage rather than growing new follicles. Common in bond-repair and smoothing lines.

How do I find Keratin amino acids on a label?

Keratin amino acids may appear on retail product fronts, but confirm the INCI list matches Keratin Peptides before assuming the formula is identical across brands.