A healthy diet rich in proteins, vitamins D, E and Omega-3's. A good multi vitamin will help, in addition to your diet. Remember "you are what you eat." If you don't eat a healthy, it will show on the outside. Staying fully hydrated. Not using harsh shampoo's and dyes. Limit using hot rollers and irons. Brushing it regularly (not to rough though) Most hair grows at the rate of about ) 0.5 inches a month. Of course genetics plays a role too, so some people will have a little more, or a little less growth a month... (:
