N2 shampoo is the KING of all shampoos. It makes every other shampoo ever made, obsolete. Nioxin and Nizoral are garbage. I even suggest it to the ladies for soft thick lushious long hair that shines. Every person on the planet can benefit from it. Its an excellent anti hairloss shampoo. I swear by it, but it's been out of stock for a very long time :'( I feel devistated.