I tried using reetha powder alone, and while it did foam, i found it hard to wash into and out of my hair; perhaps it works better when mixed with shikakai (sp?) powder, which is how most other people seem to use it. i had to turn to my usual shampoo to get rid of the residue, and when i got out of the shower i had a rash all over my body. it quickly settled down again, but i don't think reetha suits me. Seems to work for other people, so worth trying.