For the girls who said that it didn't work on their hair. It is not a permanent treatment. This should be done every two months at most at the hair salon to see results and to maintain the treatment, you do the 0 and the 3 at home.. the 0 for 15 minutes on clean wet hair and the 3 on top for 15 to 20 minutes. And you can also put a warm towel on top for steam.. then rinse with the same series or with another one if you don't have but a mild one, not those from the supermarket. For example, the frezyderm woman.. you don't need conditioner. You can use dry oil or the same series... or leave-in heat protection. And what I said is for 2 times or 1 time per week, not every day. The Olaplex at the hair salon is neither a straightening treatment nor a therapeutic one, it just helps and strengthens the hair and gives it health, let's say.. ask your dermatologist if there is a vitamin or supplement for hair. I do it every 3 months at the hair salon and once a week at home and everything is fine. Good luck :)

I started using Olaplex as a treatment at the hair salon and I was amazed.

I can't say for sure if it actually restores the bonds in the hair, but I saw a big difference in my damaged ends that used to break off. Now they don't break as much and I can easily manage them.
I've been using it for a month now, along with number 3, and every time I wash my hair it feels like I just came out of the salon.
The ideal way to use it is to apply it together with number 3 (it's not recommended to use it without number 3) and then wrap your hair with a plastic wrap to keep it wet for as long as possible (the product stops working once the hair is dry). I sleep with it like that and wash my hair normally in the morning.
*If you have any other hair products in your hair, it's good to wash them out before applying Olaplex.
*Some people say that number 3 alone is good enough, but I haven't used it on its own to see if there's a difference.
From what I saw in the ingredients, it does have a high concentration of the active ingredient that is supposed to repair the hair.