What is the best way to treat thinning or falling out hair?

Falling or thinning : Nutritiona deficiency, hypothyroidism using harsh shampoos or hair car products are some common cause. Also, some mediciations can make you lose hair. Any stressors can make u lose hair. Removing or treating the cause is the best answer. Hard water cna make you loose hair as well. Biotin whcih is availabel over the counter soemtiems helps. Talk to your doctor though for finding the root cause.