Today, various applications of CBD, from tinctures and lotions to food and beverages have all but taken over the market and can now be found in health stores and groceries in cities across the United States and beyond. Thanks to the 2018 Farm Bill, which effectively legalized its use and production, many new products infused with CBD have become readily accessible to millions of people, including CBD shampoos and hair serums. So do these products work for hair loss? And why or how do they work exactly?