Olaplex

Rich Moisture Hydration and Anti-Frizz Hair Mask for Dry or Medium to Thick Hair

4.6★ · 265 Sephora reviews · #302 Sephora bestseller

Evidence1 Reddit discussion
StatusNot enough for a GlowGrails score yet

$44 at Sephora Make this personal → Add your skin type and products you like.

Reddit evidence

What one source discussion says

Source-linked evidence only — no aggregate verdict yet.

r/HaircareScience · 65 points

Users discuss the safety and efficacy of Olaplex No. 8 mask, with some expressing concerns about hair loss, but most comments suggest it is a nice hair mask that should not cause significant hair loss when used properly.

Open source →