How to stop hair loss?

Forget about buying and using another new shampoo that is touted to stop hair loss. From my own experience, if you have come across a hair loss shampoo that works for you, please stick to it and use it for a very long time. For oily scalp, please use  anti-dandruff shampoo, those other hair growth or hair loss shampoos may not be suitable for hair loss victims with oily scalp.