Bentonite clay: HELP


Hi friends! I have been no-poo for about 9 months now and decided to try bentonite clay, but it was a total disaster! My hair was still greasy after washing it. Mixed it with ACV and let it sit for about 5 minutes…:frowning: why is it so?? I have fat hair and was told this is the best clay for that, but does not work as well as rassoul clay…Any ideas why???