Hair is discarded as a normal process. This hair loss is replaced by new growth of hair in other places of the scalp. Thus, healthy hair is the balance of hair loss with new growth. Therefore, baldness occurs when hair is lost faster that new hair growth. Conversely, hair loss can be normal but new hair growth is retarded or slowed. The net result is the same. Thus, the use of fast hair growth shampoo can restore this balance.