Very much I like this shampoo. I have straight, thin, with gray hair, dyed hair 100 times, constantly confused. Of course, no air conditioning do not use. The hair becomes strong, shiny, silky. I take the sixth time. Helping to grow long and protects the growing hair. I mean, I cut off almost all of the other hair after shampoo and now I see the difference. This shampoo does not give an instant effect, it is necessary to grow hair. air conditioning put on 5-10 minutes as a mask. still it depends on water. I liked more as working the shampoo in Tenerife and Egypt. there is another water in sochetniii after the sun and sea water, the hair was after the salon. in Peter the water is soft, the effect is not so, but it suits me. other than that, I alternate with Herbatint shampoo brand. of all on this site for myself, I chose two hair care brands.