I have used this product for about three or four years now. It replaced the previous shampoo I used. This product brought fullness back into my mid-back length hair. I totally can't live without this. It really cleanses my hair and there is a noticeable difference in fullness, length and healthiness of my hair. I believe this product can only be purchased through Amway. If you can find it - it lasts for a really long time!