K18 Leave-In Molecular Repair Hair Mask – 50ml / 1.7 fl oz

K18 Leave-In Molecular Repair Hair Mask – 50ml / 1.7 fl oz – 4-Minute Peptide Damage Repair

Bleach, color, heat styling, chemical services. Every one of them breaks down keratin chains deep inside the hair shaft, and most repair products can only coat the surface, not fix what's actually broken. K18 was built to solve that exact problem, and it does it in four minutes, no rinsing required.

At the center of the formula is K18PEPTIDE™ (sh-Oligopeptide-78), a bioactive peptide discovered after a decade of scanning the entire keratin proteome that makes up hair's DNA. Unlike traditional conditioners that sit on the surface, this peptide travels into the hair's inner layers to reconnect broken keratin chains, restoring strength, elasticity, softness, and bounce from the inside out. It's backed by hydrolyzed wheat protein and starch for added strengthening, and the results are designed to last, not wash out with your next shampoo.

Using it couldn't be simpler: shampoo without conditioning, towel-dry until damp, then work 1 to 3 pumps through hair from roots to ends depending on length and thickness. Let it sit for four minutes to activate, skip the rinse, and style as usual. It's vegan, cruelty-free, and free of sulfates, parabens, phthalates, silicones, and formaldehyde, making it safe for regular use on all hair types, including color-treated and chemically processed hair.

✨ Key Highlights:

• Patented K18PEPTIDE™ repairs damage at a molecular level in 4 minutes
• Reconnects broken keratin chains from within the hair, not just the surface
• No-rinse leave-in treatment, results don't wash out
• Works on all hair types, including bleached and color-treated hair
• Vegan, cruelty-free, sulfate-, paraben- & silicone-free
• 50ml size, a go-to between salon treatments or after chemical services