Horrible.
"I’ve used just about every Keratin Complex formula out there and this one is the worst! I used it in my friend with very normal hair, not really wavy, colored hair that frizzes in our Florida heat. It pulled all of her color out, was horrible to try to brush through and worst of all, she still has frizz and her hair won’t take color still. Frankly, wish I stuck to the standard formula and never bought this kit. I’m out $250 and am afraid to use it on anyone else."
