While there are a variety of prescription medications available from doctors online for your convenience and price, there are also many natural DIY treatments that you can use at home. At ExpressMedRefills, we know how important it is for our patients to feel safe, how they look and feel inside. Here we see 10 natural supplements, vitamins and other ingredients that can improve your hair. 1.Vitamin A. Vitamin A, also known as retinol, is very important for the health of your hair and scalp. Products containing vitamin A strengthen and protect the hair from future damage. Healthline writes: "All cells need vitamin A to grow. This includes the hair, the fastest growing tissue in the human body. Vitamin A also helps the glands in the skin to produce an oily substance called sebum. Sebum hydrates the scalp and keeps hair healthy Diets with vitamin A deficiency can cause a variety of problems, including hair. ...