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K18's leave-in mask is a lightweight, no-rinse treatment built around its peptide-based repair technology, meant to rebuild damaged hair rather than just coat it. You apply it to clean, towel-dried hair and leave it in, so it adds no extra rinse step to your routine. The 0.5 oz size is a trial or travel format, enough to judge whether the formula suits your hair before committing to a larger bottle. It suits people with bleached, heat-styled or otherwise compromised hair who want a leave-in rather than a wash-out mask.
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Lowest price we've seen: $7.98 on Nov 13 at Amazon. Tracked across 11 stores since Nov 13.
Rated 4.6 out of 5 across 149 ratings, the mask draws strong marks from buyers who use it on damaged, bleached or heat-styled hair. Most praise how hair feels softer and easier to manage without a rinse step.
K18 Leave-In Molecular Repair Hair Mask is a lightweight leave-in treatment for damaged hair. It improves the appearance of damaged hair and enhances softness and manageability.
The formula absorbs quickly and works without rinsing. Hair feels smoother, healthier, and easier to style. The 0.5 oz size is made for travel.