I've only used it on dry hair...it is really thick so a little goes a long way, I have waist length, thick, naturally curly, colored hair. Use juat a few dabs and worked it through my dry hair (not the roots) and then really brushed it in well. The snarls from my curls fell away and I could brush without the frizz, tugging

When I used this the first time I did not follow directions and used it on my dry hair to go over my fly aways. Well you should defenitly use it on wet/damp hair cause its a very thick Serum and its much easier to apply evenly on wet hair. If you do it on wet hair though, it works great and gives you an amazing shine. Leaves my hair ...very smooth and soft!