The instructions on the shampoo were not clear. I'm a daily swimmer, I shampoo my hair every day to get the chlorine out. The instruction on this shampoo bottle says to only shampoo your hair twice a week. That is not possible if you are an athlete. So the shampoo ran out after 3.5 weeks, but was advertised to last 3 months. The instructions should read, if you must shampoo every day, please only use Hair Revolution shampoo twice a week and other shampoo in between. I use the Elixir and hair rinse daily as instructed, and hair feels a lot better and seems to fill in. My hair loss/damage was due to BP medication Amlodipine. I immediately stopped taking it, when I noticed the hair loss. I feel the company should send me a free bottle of shampoo. The other 2 products will last 3 months and I use them daily. I ma only giving this review 3 stars, because the shampoo ran out so soon, and I used very small amount.