After all, you can’t help but notice it everywhere — so much that I find myself searching for new ways to prevent any more hair loss. That’s where $14 Kitsch Volumizing Rosemary and Biotin Shampoo Bar comes in.

The Dr. Groot Scalp Revitalizing Solution is a hair growth shampoo from a popular Korean brand. Shoppers with thinning hair say it thickens hair and fills in sparse areas. Buy it at Amazon on sale for $21.