The American Academy of Family Physicians notes that hair growth lasts around two to three years. Each hair grows about one centimeter per month. The hair is prone to many disorders and conditions which may interrupt the regular hair growth cycle. Luckily, there is a selection of vitamins available that you can take to help speed up the hair growth process.
Biotin
Biotin, commonly referred to as vitamin H, is part of the complex group of B vitamins. All B vitamins are necessary for healthy hair, skin and eyes. Your body needs biotin to help keep your hair and nails firm and can be found in many cosmetic productions, according to the University of Maryland Medical Center. A low amount of biotin in your body can cause hair loss. Preliminary evidence stated by the University of Maryland Medical Center suggests that biotin supplements may be able to help treat hair that is brittle, thin or dry. Also, when biotin is used with topical clobetsol propinate and zinc, it helps to combat a hair disorder called alopecia.
Vitamin C
Vitamin C is required by the body to help it absorb iron, according to Natural News. Women's Fitness says that iron is essential for the hair as it is involved in maintenance and also ensuring that the hair grows properly during the hair growth cycle. Iron improves the speed of hair growth. Like biotin, vitamin C can help fight off hair disorders such as alopecia, male pattern baldness and hirsutism, according to the University of Maryland Medical Center.
Vitamin E
Vitamin E helps to enforce quick hair grow by improving the circulation of blood on your scalp, resulting in efficient hair growth. Vitamin E also builds capillaries in the hair, which are responsible for growing hair. According to Natural News, vitamin E can also be used to help treat dry and damaged hair.



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