What shampoos are good for hair loss?

I'm losing so much hair

I'm trying a shampoo that's supposed to be good for hair loss; is it supposed to be stiff?

It seems quite different from regular shampoos...

And I haven't noticed any significant difference yet, even though I've been using it for over a month.

Do you happen to have any effective shampoos? If you have any hair products, please recommend some.