I have been using it for 2 months (the company claims that at least this amount of time is needed to see a difference) and therefore I have to say the following.
Initially, I started using it because I used bleach on my hair and I can say that definitely since I started using it I have seen a difference. I feel that my hair is not as damaged and I feel like it has become heavier. It's as if I have more hair in quotes. Something I have never noticed in my hair before. Overall, I am very satisfied and I think it works. Everyone keeps telling me that my hair has grown, etc. Which is not much length that grows in 1-2 months. I believe it really had an effect and I think it looks fuller, thus giving the illusion that it has grown. Generally, anyone who buys it should know that it works like Olaplex 3 and you generally do not need to buy the entire Redken line. This product is enough for treatment. One more observation, the smell is not to my taste, it’s a bit strange, not unpleasant by any means, just keep that in mind. For anyone who doesn't know, unfortunately, the treatment alone is not enough; with the use of bleach, the hair needs full hydration, so buy some good conditioners-masks-leave-in conditioners if you have the opportunity.