Very good product!! I have highlights and I style my hair every week. I buy and try many high-priced hair products and this one really works. It reduces split ends without weighing the hair down at all, leaving it soft. It's worth trying

Excellent product, perfectly protects the hair from daily use of a straightening device. Makes them smooth and shiny.

I will just say that before this, I used to cut my hair every 40 days or so and I always had split ends and the ends were always in bad shape. I always used a heat protectant from another brand. Now with this, I get a haircut every 4 months and my hair is almost perfectly clean when I cut it. I have been using it for 2 years, I don't have dyed hair but I use a hairdryer

It is the first and only Olaplex product I have used and I am very satisfied, even though I have not combined it with a mask that would definitely help even more. I feel my hair hydrated, soft, and the reduction of frizz is noticeable.

With frequent use and overnight treatment, the hair completely changes... I am a natural blonde with full highlights and my hair is perfect with these Olaplex products, while it was damaged before... I wonder about those who write the opposite, honestly, the product, as well as the whole line, works miracles