Olaplex and K18 both repair damaged hair, but experts and testing reveal which bond-building treatment works better for breakage, dryness, and heat damage.

K18’s FutureIQ Biomimetic Hair Longevity Serum claims to ‘support the scalp environment before visible signs of ageing appear ...

The Independent and Yahoo will earn a commission from purchases made via links in this article. Pricing and availability are subject to change. K18 hair products have been the star of my social feed ...

K18 still saves my hair, despite all the bleaching and heat styling I’ve done.

Add Yahoo as a preferred source to see more of our stories on Google. The K18 hair mask is a leave-in formula designed to reverse damage from bleach, color, chemical services, and heat in four minutes ...

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, ...

Our hair is quite resilient, especially considering all the torture we put it through in order to get our desired style. From hot tools to hair dyeing, it’s clear why we might end up with fried, dry, ...

New York Post may be compensated and/or receive an affiliate commission if you click or buy through our links. Featured pricing is subject to change. I finally fell down the K18 rabbit hole — yes, I’m ...