Evidence supporting the use of: Copper
For the health condition: Hair (graying)

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Synopsis

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

Copper is an essential trace mineral that plays a crucial role in various physiological processes, including melanin synthesis—the pigment responsible for hair and skin color. The enzyme tyrosinase, which is copper-dependent, is vital for the production of melanin in hair follicles. A deficiency in copper can, in rare cases, result in hypopigmentation and premature graying of hair, as observed in certain inherited disorders like Menkes disease. Some small studies and case reports suggest that individuals with lower copper levels may be more prone to premature graying, though this association is not universally observed and population-level studies provide mixed results.

While copper supplementation may reverse hair depigmentation in cases of severe deficiency, there is insufficient evidence to support its routine use for preventing or treating gray hair in the general population. Most cases of hair graying are primarily due to genetic factors and natural aging rather than copper deficiency. Current scientific literature does not support high-dose copper supplementation as an effective intervention for typical age-related hair graying. Excess copper can also be toxic, making indiscriminate supplementation inadvisable. In summary, while copper’s role in hair pigmentation is scientifically established, the evidence supporting its use to treat or prevent gray hair is limited and does not substantiate widespread use outside of documented deficiency.

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