HuffPost may receive a commission from some purchases made via links on this page. Every item is independently curated by the HuffPost Shopping team. Prices and availability are subject to change. The experts consulted for this story do not necessarily endorse the products ahead unless otherwise noted. It’s often just wishful thinking to believe that something as simple as an affordable shampoo can get to the root of all your hair-thinning woes. However, this unassuming bottle from Amazon has