Evidence supporting the use of: Vitamin B6
For the health condition: Hair Care (general)

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Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Vitamin B6 (pyridoxine) has a traditional reputation for supporting hair health, largely based on its essential role in general metabolism, including the metabolism of proteins, which are vital for hair structure. In traditional and alternative medicine, B6 is sometimes included in supplements marketed for hair growth or general hair care, often alongside other B vitamins and minerals. The rationale is that deficiency in B6, like deficiencies in other B vitamins, can lead to symptoms such as hair thinning or poor hair quality, since B6 is required for the synthesis of keratin and other proteins important for hair structure.

However, scientific studies directly linking vitamin B6 supplementation to improved hair growth or prevention of hair loss in non-deficient individuals are limited. Most evidence comes from case reports or observational studies where correcting a B6 deficiency resolves associated symptoms, including hair issues. There is no robust clinical trial evidence that B6 supplementation benefits hair health in people with adequate dietary intake. Nonetheless, because B6 is crucial for general cellular function and protein metabolism, ensuring sufficient intake is considered part of good nutritional support for hair. In summary, the use of vitamin B6 for hair care is supported by tradition and by its known role in health, but scientific validation specific to hair care in otherwise healthy individuals is lacking.

More about vitamin B6
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Products containing vitamin B6

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