Ive been using it for 2 weeks now and not a single sign of dandruff (previously I could only use one particular brand of anti dandruff shampoo or I'd break out straight away). My hair and scalp is so nice, clean and itch free! I'm also going longer between washes then I have with any other shampoo/conditioners I've used. Day 3 and my hair is still wearable and by day 4 it's becoming oily but still not itchy (normally I can't get to day 4 because my hair and scalp becomes so itchy and it's covered in dandruff). I'll definitely be purchasing again!