The K18Peptide (the product's star ingredient), mimics the structure of the hair’s natural keratin to boost moisture and promote thicker hair, Amin says. The patented peptide is also designed to repair broken keratin chains, which improve hair strength, according to the brand.

Yes, it does. Since hair is identical on the molecular level at the innermost layer of hair (the polypeptide chains) where K18 is patented to work—K18 has your back, renewing stressed + damaged strands for bouncy curls and coils again.

The K18 treatment works at the innermost layers of the hair fiber to reconnect broken polypeptide chains, restoring hair strength and elasticity.

K18 is a leave-in molecular repair mask (emphasis on leave-in) that strengthens, soothes and hydrates heat- and color-damaged hair. And it only takes four minutes after combing it through clean, wet hair to work its magic. The catch, however, is that K18 only works on unconditioned hair.

K18 is powered by the patented K18 PEPTIDE™, planned over 10 years in a biotech lab to operate on the molecular level and reconstruct hair from inside out in just 4 minutes. Because the K18 PEPTIDE™ functions at the molecular level, it works on every hair type, including long, short, curly, straight, frizzy, thick, thin, dyed, or natural.