Before you choose a product to grow your hair, you should really find out why you are losing your hair.  Knowing why you are losing your hair is vital to finding the right hair loss product for growing hair for you.  The causes for hair loss vary so much that you will need to have some testing done to discover the reason for your hair loss.  Once you have the information you need about your hair loss, you will be more informed and able to shop online for the product that will help you regain your hair.  You can choose to spend your hard earned money on product after product or you can spend your money to find out why and buy the one product that will work for you.