You may have seen advertisements praising the benefits of several drugs and procedures that promise to promote hair growth. Some FDA approved hair loss treatments are really effective and safe, but results vary from person to person and aren’t always guaranteed. However, natural treatments haven’t proven to give effective results. Although various studies have shown that onion juice and capsaicin (an active component of hot chilli peppers) are good for hair regrowth. Rosemary, sage, and aloe vera are also used for hair regrowth, but more research is needed to evaluate the effectiveness of these remedies.