

K181 dupe from $19, up to 89% less.Compare them →
Leave-In Molecular Repair Hair Mask
Bond-repair treatment · 50 ml
$75
Description
Leave-in treatment used on damp hair after shampooing, with no rinse and no conditioner for the first few uses. Works in about 4 minutes.
Key ingredients
- K18Peptide™
Leave-In Molecular Repair Hair Mask dupes
-89%
Cost per fl oz
K18$44.36 / fl oz
COSRX$4.68 / fl oz
- Size
- 50 ml
- 120 ml
- Key ingredients
- K18Peptide™
- Tripeptide-132 HCl, Biotin, Soluble collagen, Hydrolyzed hyaluronic acid
What matches
Both rebuild broken keratin bonds with a low-molecular-weight peptide — K18Peptide in one, Tripeptide-132 in the other — and both are aimed at bleach, colour and heat damage.
What the dupe does worse
This one is rinsed out after a few minutes instead of left in, and it is silicone-and-oil heavy, so fine hair can be left with a slight film K18 never leaves.
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