I did the treatment with No0 and No3 on hair damaged by bleaching, which break and tend to tangle and form small knots. When I rinsed the treatment, I was momentarily thrilled because the hair felt smooth; however, after washing it with regular shampoo, that feeling disappeared. I might need to buy the shampoo from the line to maintain the result.

I also used No8 as a mask, but my hair was perhaps wetter than it should have been, and it seemed like the mask "disappeared." On slightly dry hair, No6 and No7 worked well. On completely dry hair, it was the first time in a while that I could use a fine comb.

The next day, I could still feel the leave-in No6 and No7, but unfortunately, small knots had formed again. This was without re-combing my hair for 24 hours. The damaged part is only a small section of my hair; the hair that hasn't suffered from bleaching feels like silk with just the use of No8, 6, and 7.

I will return when I do the treatment with No0 and No3 again.

I don't know if it works on its own, I used it in combination with number 3 and the results were truly impressive. Going from black to brown required two bleaching sessions and my hair suffered a lot. From the first use, you can feel the difference; now, after a month and using it once a week, I can say it's worth trying!!!

I use it as a preparation for No. 3, but I didn't see any difference compared to before when I used it without it.

Absolutely satisfied. I use it every month after coloring my hair. In combination with the 3 and the oil of the same series, my hair is shiny, healthy, and perfectly styled without frizz. I deduct one star due to the price

We are really talking about biotechnology...! Whatever I say about this product is not enough. My hair is naturally thick and frizzy, so I use heat on it every day. Now, with this specific product (I think it's the best in the range), I don't need to do anything else to my hair except apply it... simply perfect!

I use it together with number 3. Initially, I apply this and after 10 minutes, I apply number 3 and leave it on my hair all night.
Before using just the number 3, it was difficult for me to use. With the number 0, it is definitely much better, the number 3 spreads better. Now, as for effectiveness, I am satisfied but not fully satisfied. It doesn't work miracles.
I have bought all the numbers, even number 1 and number 2 which I will write about at some point.
Its shampoo is the best shampoo on the market and I wouldn't change it for anything. As for all the other Olaplex products, I will consider repurchasing them when they run out.