The K18 Leave-In Molecular Repair Hair Mask has quickly become the crown jewel of the brand’s science-backed, stylist-approved lineup. In recent years, K18 has cornered the market on easy-to-use, ...

Still, I noticed the most drastic change when I started using the K18 Biomimetic Hairscience Leave-In Molecular Repair Mask. Small but mighty, this leave-in hair ... $120 $29 at Sephora.com ...

Get the K18 AstroLift Reparative Volume Spray for $46 at Sephora! Using my trusty T3 Aire ... profound as K18's Leave-In Molecular Repair Hair Mask, but this is nice for when your hair could ...

and rinse with cold water to enhance shine — but some masks (like K18’s) work as leave-ins. The most important thing about hair masks is the active ingredients they are formulated with.

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 ...

Here's how you do it with the best frizzy hair products. 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 ...

Tresses that have acquired a certain crunch after lots of sea and sun. If your hair is struggling to bounce back, it could be time to add a conditioning mask to your routine. “Hair masks provide an ...