K18 vs Olaplex: which hair treatment is better?

Two treatments are battling it out for the hair repair spotlight: K18 vs Olaplex. Both work in a different way to most haircare (more on that later) and both have garnered quite the fanfare. But which reigns supreme? We put the hair heroes head-to-head to find out. 

A decade ago, every single one of the best hair masks and the best scalp treatments focused on treating the outside layers of the hair cuticle only. Then, in 2014, along came Olaplex—a revolutionary bond-building treatment that works from the inside out to repair damage and strengthen strands. It soon became a staple at every major salon with stylists, beauty editors, and A-listers alike waxing lyrical about its mane-changing results. 

https://www.womanandhome.com/beauty/hair/k18-vs-olaplex/