Are there any shampoos or products that help prevent hair loss?

As I get older and lose a lot of hair

I can see my hair thinning, so I'm a bit worried.

I don't have hair loss yet, but I want to prevent it in advance.

If I use it consistently, it should be effective, right?

By any chance among products such as shampoos or scalp ampoules

Are there any products that help prevent hair loss?