I just use the powder to brush my teeth, two or three times daily. I rinse it, I haven't tried leaving it on at night. It would probably work faster. I wasn't trying to regrow it, I just used the powder because I don't like regular toothpaste. I was surprised by the result.
No, I am not currently doing the program as MH suggests, because I have concluded I seriously need to mineralize first, but my lifestyle is alot healthier than the general public. I pretty much eat organic fruit, veggies, chicken and dairy and try to limit sugar and meals I haven't cooked myself. I do take the LBB, and use the TopKnot. I also got great results from TK, my hair is much thicker, lots of new growth at the temples.