I use this product about every 3-4 days, depending on how clean my hair feels. It is a great product because it is gentle, free of additives, tingling on the scalp which I really like because of the mint used in the shampoo. It is easy to use, makes a great lather and you only need a little bit. Therefore, it lasts a really long time. It smells great; again, not overbearing, not heavy in feel or when you are washing your hair; my scalp tingles when I finishing rinsing. This product is great for my needs.