![]() protecting hair from oxidative stress, which has been linked to hair loss ( 9).contributing to the synthesis of collagen, which contains amino acids that can be used to build keratin - an important part of hair structure ( 2, 8).Vitamin C is a powerful antioxidant that has several important roles that can affect hair health, including: Vitamin B12 deficiencies are more common, especially in older adults and people following a vegan diet ( 7). However, some individuals may be at a higher risk, including those with restrictive diets ( 4, 5, 6). Similarly, research is inconclusive on whether folate and vitamin B12 are effective for hair growth in people with adequate intakes ( 2, 3).ĭeficiencies in riboflavin, folate, and biotin are rare. ![]() While biotin is one of the more popular supplements for hair, skin, and nails, the research supporting its benefits for people with adequate biotin intake is limited ( 2). B vitaminsĭeficiencies in riboflavin, biotin, folate, and vitamin B12 have been associated with hair loss ( 2). In these instances, a supplement may offer some benefit ( 2).ĭeficiencies in several nutrients - including some B vitamins, vitamin D, vitamin C, iron, and zinc - may contribute to hair loss. ![]() However, some nutrient deficiencies have been associated with hair loss. In fact, there’s very limited research to show that hair vitamins and supplements promote hair growth in generally healthy people. If you want healthy, luscious locks, it’s important to maintain an overall nutritious diet.
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