I use all hair product TRESemmé Keratin smooth 7 days system :
shampoo, conditioner, smoothing spray and smoothing system heat activated. I work in a very dusty, dirty shop, so I have to wash my hair every day. My hair is dry and naturaly frizzy ! But now, when I work, I use the shampoo and conditioner every time I wash my hair my hair looks and feel much better than if I use a regular shampoo and conditioner. There not frizzy an dry looking ! And on week ends, I use all 4 products, they look even better.... and they are easyer to blow dry and flat iron !! Since these products are fairly new, that's all I can say..so far so good !!!