15% under what the other stores charge
Compared across 7 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.
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K18's leave-in mask is a small bottle of peptide treatment meant to rebuild broken keratin chains inside the hair. You apply it to damp, towel-dried hair and leave it in for 4 minutes before styling, with no rinse step. It suits people whose hair is damaged by bleach, dye, chemical services or heat, and it works on all hair types. Against rinse-out bond builders and protein masks, its draw is the no-rinse, four-minute routine and the K18Peptide technology; the trade-off is a small bottle and a light, sometimes tacky feel on fine hair.
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Lowest price we've seen: $22.00 on Nov 13 at eBay. Tracked across 13 stores since Nov 13.
Rated 4.7 out of 5 from 128 ratings, buyers largely report softer, stronger-feeling hair after damage from coloring and heat. The main complaints center on the small bottle and the leave-in texture on fine hair.
K18 Molecular Repair Leave-In Mask is a leave-in treatment mask that repairs damaged hair. It reverses damage to the hair fibers in 4 minutes. It is suitable for all hair types.
It uses K18's patented peptide technology to repair damage from bleaching, coloring, chemical services and heat. It restores the hair's strength, softness, suppleness and bounce. The K18Peptide molecules are sized to fit into the hair. They work in the inner layers of the hair to reconnect broken keratin chains.
