Love! Easy, affordable, effective. [SEP] This is, I think, my third order of Rio De Keratin. I'm able to get 3-4 treatments out of each kit with my hair ranging from super short to just below my shoulders. I usually still iron my hair, but it stays flat, even in Alabama's subtropical humidity. Otherwise, it doesn't matter what I do: by the time I walk from my house to the car, my hair is frizztastic. But with a keratin treatment, I can even just blow dry my hair and it look fantastic. This saves so much more time and it makes styling last for days. I also hike and get sweaty and my hair still looks great after it dries. Once, after a day of kayaking, I rode in the back of a friend's truck back to the marina, and my hair still looked terrific. This of all things has given me the hair I've dreamed of. And at $10-$15 per treatment, this price is right.<br /><br />Of course, it does smell terrible. And the fumes can sting your eyes, both as you apply it to your hair and as you iron it out. I like to open the back door and aim a cyclonic fan into the bathroom while I use this stuff so I don't choke on the fumes.