ok I found this on Jane Carters site. Hope this helps somone else or someone comes in here with a testimonial to Zinc
How do I get my hair to grow faster?
Chances are, your hair is growing, you may just want to speed up the process. The three essentials to fast hair growth are: lots of water, aerobic exercise and eating mineral rich foods or taking extra minerals in supplements. Taking 22.5 miligrams of zinc daily along with a multi vitamin will speed up the process. Shampooing 1 to 2 times weekly and using products that cleanse gently, nourish and strengthen your hair will keep your hair from breaking. Exercise is so important because heart pumping exercise speeds up blood flow, therefore getting more nourishment to the papilla of the hair and perspiration unclogs the pores and helps to rid your body of toxins. Exercise also reduces stress and helps your body to relax. Drink 10 to 12 8oz glasses of water daily and eat lots of leafy dark green vegetables. Whenever you exercise, be sure to rinse or shampoo your hair 2 to 3 times weekly. If you cannot shampoo often enough, mist your hair with Revitalizing Leave In Conditioner and seal in the moisture with Nourish & Shine. Remember, perspiration has salt and ammonia in it and both are very drying for your hair, so be sure to shampoo or rinse as often as possible. P.S. loose the weaves, glue and heavy gels, and shampoo more often if you want your hair to be healthy!