It does exactly what it promises!

It is the FIRST step to spray it on wet hair BEFORE washing it and immediately after WITHOUT rinsing it off...
the SECOND step is to wash it with your shampoo (ideally from the same range).
followed by the THIRD step, which is the serum that you rinse off after 2-3 minutes... and finally the FOURTH step... the mask that is not rinsed off on damp hair.

CAUTION: the product that is not rinsed off and is for AFTER shampooing is the FOURTH step, which is the Absolut Repair Molecular professional Leave-in Mask (also used as heat protection).

Everyone chooses HOW MANY OF THESE steps they want to include in their routine...
However, if any of the 4 steps are not done in their proper order (i.e., which comes first and which comes next), there will be a problem as I read in a review that precedes mine.

Quite a good product! It greatly restores the hair, especially the bleached ones. Regarding the previous comment I read above, it seems that the usage was not done correctly from what I understand. The instructions are clear! It is a pretreatment. It is not a leave-in product. "Does not rinse out" means you apply it, leave it for two minutes, and without rinsing, you proceed to shampoo as usual.

The most wasted 40€ I have ever spent, the product is supposed to be rinse-free according to the instructions, however, according to the same instructions, you spray it and wash your hair with the shampoo from the same line if you want, but the main instruction is without rinsing. When I spray it on my hair, it hardens and makes it rough like straw, resulting in split ends. Since I have fine hair without much trouble, the comb always glided through, but after this disgusting experience, the comb doesn't even pass through with force. As for what it promises, not even close! Don't waste your money, get something else.