K18's Leave-In Molecular Repair Hair Mask did just that, emerging in late 2020 as the new ‘It' girl of at-home hair treatments. The K18 hair mask is a leave-in formula designed to reverse damage ...

Hailey Bieber swears by the K18 viral hair mask and now the brand has launched two new shampoos. Here are Team Stylist’s honest thoughts on the K18 hair range. With a long list of scientific ...

Hair masks are a fix-all for unhappy hair ... and rinse with cold water to enhance shine — but some masks (like K18’s) work as leave-ins. Update on March 14, 2025: Updated prices and checked ...

But here’s the thing: Hair volume products are historically kinda finicky, IMO. This is exactly why K18 AstroLift Reparative Volumizing Spray was created. Typically, volumizers like mousses ...

Coconut oil: It's not just for cooking anymore. We tested the salon-loved K18 hair mask to see if it really holds up to heat- and color-damaged hair. Spoiler... The Shark FlexStyle Air Drying and ...

K18’s Leave-In Molecular Repair Hair Mask did just that, emerging in late 2020 as the new ‘It’ girl of at-home hair treatments. In non-science terms, this means that the K18 hair mask makes ...