Review on Vitamins Keratin Purple Toning Shampoo: Banish Brassiness & Revitalize Hair- Ideal for Bleached, Platinum, Silver, or Colored Tresses by Carla Anderson

My hair is curly and this shampoo is great. You must use it with Keritan Leave-in Conditioner. I live in Flireed and have fine wavy hair that gets unruly when wet. I've tried all sorts of products. A few years ago, Paul Brown straightening worked because it left the body in your hair. Then I tried salon keratin straightening and as a result my hair became straight. So many shampoos later I found this shampoo and left it in the serum. That's great . I leave it on my hair in the shower for a few minutes. I bought a comb with big teeth to hang in the shower and brush after washing my hair. Then rinse off after a few minutes. I applied two pumps of the serum (I have shoulder length hair). Then I take a comb and comb through. I blow dry after 10 minutes of air drying. My hair is soft and straight. Humidity does not make it wavy. I've found that when I'm working out outside and my hair gets sweaty (and I don't have time to wash) I apply it once and dry on low and I have straight hair with more body again.