Olaplex
No. 9 Bond Protector Frizz Reduction & Heat Protectant Hair Serum
4.5★ · 1,337 Sephora reviews · #80 Sephora bestseller
- GlowGrails score52/100i
- Reddit signal58/100i
- Evidence2 Reddit discussions
- VerdictLeans positive
- Strongest signaladding shine · reducing frizz
Why it scored 52
Leans positive
2 independent Reddit discussions · Early evidence
Bottom line
Reddit discussion leans favorable, but it is not unanimous. The strongest use-case signal is adding shine and reducing frizz. The most common watch-out is breakage and brittleness.
People mention
adding shinereducing frizz
Watch-outs
breakagebrittleness
Representative discussions
Every summary links back to the source discussion.
Mixedr/HaircareScience · 23 points
Using bond-building products like Olaplex on healthy, undamaged hair may not be necessary and could potentially cause problems, but some users find benefits in reducing frizz or adding shine.
Open source →Mixedr/HaircareScience · 6 points
The Olaplex No. 9 Bond Protector Frizz Reduction & Heat Protectant Hair Serum is mentioned as a potential heat protectant, but its effectiveness and suitability for this purpose are debated.
Open source →