The K18 Leave-In Molecular Repair Hair Mask has quickly become the crown jewel of the brand’s science-backed, ...

Our top picks for the best Olaplex dupes An expert-approved bond builder, the K18 Leave-in Molecular Repair Hair Mask works on every single hair type and is exceptionally easy to use. Maintaining ...

The quiet rise of K18—a premium haircare brand with a scientific soul—offers a textbook case of what modern consumers want, and what luxury brands must now deliver. Not louder claims. Not flashier ...

Reviews and recommendations are unbiased and products are independently selected. Postmedia may earn an affiliate commission from purchases made through links on this page. It’s said to repair ...