I have only recently been introduced to this product but oh my it has completely transformed my hair. When I am filming, my hair goes through a lot of trauma. It is blow dried or straightened almost daily so I need a product that offers some serious protection. Olaplex has done that. I use it on my hair when it is towel dried and try to keep it on overnight if I can. Sometimes I can only manage 10 minutes but it still makes a difference.