How can i thicken thinning hair .

Get checked: To make sure it isn't your thyroid gland not working properly or other hormone imbalance, get checked by a doc. You can also try biotin which is an otc supplement or rogaine (minoxidil) if it looks like male pattern baldness. Keeping your body healthy and less stressed can also help (eat healthy, exercise regularly, don't smoke, drink alcohol 1-2 drinks per day or less).

Get eval: Get adequate sleep,avoid excess sugar & fat, v carbonated drinks, eat enough protein, exercise regularly. Insure you have adequate Iron (like kale & other dark green leafies), Omega 3 fatty acids (like walnuts),vit.E (fruits & veggies), D & B vitamins, biotin & zinc. Avoid sulfates & formaldehyde in shampoos, excessive blow dry heat & curling irons.