Due to age and menopause, my hair has thinned tremendously. Over the course of several months of continuous use, my hair is shinier, softer and appears fuller. The bonus is that whatever it's doing to my scalp is awesome! I have 2 inches of new growth all over my head. I've read somewhere that your hair follicles need to be cleansed of oxidant buildup to allow the hair to grow properly-- I believe this product is doing just that. I don't mind paying a little extra for a product that is improving my hair and scalp. I'm glad I found it!!