Most of the hair problems are caused due to certain deficiencies in our diet. Often, the hair loss or loss of hair color is associated with poor diet, but long-term hair loss and baldness are usually genetic. A diet rich in key nutrients can greatly improve the condition of your hair and in may restore natural hair color. Active Ingredients found in Gray Hair Rx: Catalase Catalase is a common enzyme found in nearly all living organisms which are exposed to oxygen, where it functions to catalyze the decomposition of hydrogen peroxide to water and oxygen. Catalase has one of the highest turnover numbers of all enzymes; one molecule of catalase can convert millions of molecules of hydrogen peroxide to water and oxygen per second. The Catalase enzyme is responsible for keeping our hair dark (or keeping it from bleaching out and turning gray). Catalase enzyme production declines with age, preventing hair follicles from producing melanin. In essence, catalase deficiency allows hydrogen peroxide build-up, bleaching our hair to gray then white. Fo-ti Fo-ti is a traditional Chinese plant which for centuries has been used in herbal medicine. The Chinese name of the herb is He Shou Wu, translated as "black-haired Mr. He". It comes from the legend about an old villager who took he shou wu to restore his dark hair, youth and vitality. Fo-ti is used in Chinese medicine to restore the color of graying hair, weakness, premature aging, erectile dysfunction and vaginal discharge. Zinc Severe zinc deficiency in humans has been shown to produce baldness and scalp problems that were reversed when zinc was returned to the diet. It was discovered that there was a change in the hair protein structure when zinc was deficient in the diet. Zinc has also been shown to stop hair turning grey. One doctor taking zinc for a year reversed the grey hairs which returned to their original color.