I have very very curly hair (tiny loops). I use this smoothing for months, initially I was ordering on amazon.co.uk, now it is available on Amazon.com it's pretty cool. Honestly, my hair is healthier, more flexible and 10 times brighter. Obviously, they are not straight, but I'm doing my blow-dry in 10 minutes instead of 45 min. My blow-drying takes longer and my hair glonflent no longer in contact with moisture. When I do not smooth I have large well defined and shiny curls. I attribute it 4 stars and not 5 because the hair does not become stiff as sticks, but at that price, we must not ask too much. I have long hair, I used almost the whole pot. I kept the rest for small retouches between 2 treatments. The smell is frankly not unlike smoothing ghair annoying (it's just a horror). By cons are using the gloves as expected :-) If you want shiny and soft hair, go ahead, especially if you have always been very dry hair.