Has anyone experienced both? The internet doesn't seem to have much of a clue! I've been henna-ing my hair, once every month or so for a couple of years. I'm interested in Brazilian keratin treatment, not for the straightening effect (in fact I would sooner have my big waves!) but for the de-frizzing properties. I'm worried about what the effect might be on hennaed hair though. The lady doing it doesn't know as she's only dealt with women who use chemical dyes. I just use 100% pure henna powder.
Anyway, any experiences?