I have really thick frizzy and curly hair and I swear I have tried several shampoos out there with in a reasonable price and of course nothing was working for me but Redken Smooth down has worked great. My hair stylist had referred me to this product and i was a little weary of it cause. she has leaded me the wrong way before with other products. I decided i would give it a try one because it was 25% off that day. I thought what was there to lose. It took about a week or so before i could really see the results, I use to have to add tons of other products in my hair to help tame it...