What's the interest rate on this account? http://imagefapbeta.in.net/ imagefap granny Boosting tissue growth and repair, zinc helps keep your scalp and hair stay healthy. It also regulates hormones (testosterone included) in the body and helps maintain production of oil-secreting glands on the scalp that help your hair grow. There's no need to go overboard, though. High levels of testosterone are actually linked to hair loss, Bauman said. According to the Office of Dietary Supplements, 11 mg a day is all you need. While it's not proven your body will go on a T rampage if you consume too much zinc, there's no need to tempt hair follicle fate.