Concern about hair loss after childbirth

Since I had a lot of hair since I was young, it actually became a concern.

But after having the baby, my hair really started falling out.

Still, since it was the first time and I was young, I recovered pretty quickly~

After having my second child, I still feel like I'm suffering from hair loss. ㅠ

I always ask if my hair has enough volume every time I go to the beauty salon ㅠ

What are some good methods for hair loss?

I don't think just using hair loss shampoo is enough ㅠ