Evidence supporting the use of: Vitamin B6
For the health condition: Hair (loss or thinning)

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Synopsis

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

Vitamin B6 (pyridoxine) is traditionally included in supplements aimed at supporting hair health or preventing hair loss, but robust scientific evidence supporting its efficacy for hair loss or thinning is limited. Historical use of B vitamins for hair stems from their general role in cellular metabolism and support of healthy skin, hair, and nails. Vitamin B6 contributes to protein metabolism, red blood cell formation, and the synthesis of neurotransmitters, all of which are essential for overall health, but not directly linked to hair growth in most people.

Some small-scale studies and anecdotal reports suggest that vitamin B6, sometimes combined with other B vitamins (particularly biotin and B12), may help improve hair quality in individuals with deficiencies. In rare cases, hair loss can be a symptom of vitamin B6 deficiency, and supplementation may help restore normal hair growth in those individuals. However, for the vast majority of people experiencing hair thinning or loss, there is no solid scientific evidence that vitamin B6 supplementation is beneficial if deficiency is not present.

In summary, the use of vitamin B6 for hair health is mostly based on tradition and its general role in overall nutrition rather than direct evidence of benefit for most forms of hair loss. The evidence level is low, but its inclusion in multivitamins is considered safe within recommended dosages.

More about vitamin B6
More about Hair (loss or thinning)

Products containing vitamin B6

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