I used this shampoo for many a time. At starting it feels very good after using this shampoo. Coin size shampoo is sufficient for men’s hair, also it is very easy useful. Just apply coin size shampoo and rinse it properly. After effects it feels after using it. But why I said harmful because after some days it affects badly, hair fall increases. So whatever they promise not use of it. So my request not to use this shampoo, as it is very harmful for hair fall.