mechanistic
Analysis v1
Strong Support
Gray hair might happen because certain repair proteins are missing in the hair roots, so damage from oxidation can't be fixed properly.
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0
Evidence from Studies
Supporting (1)
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Community contributions welcome
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Senile hair graying: H2O2‐mediated oxidative stress affects human hair color by blunting methionine sulfoxide repair
Cross-Sectional Study
Human
2009 JulThe study found that gray hair lacks key proteins that fix damage from oxidation, which matches what the claim says.
Contradicting (0)
0
Community contributions welcome
No contradicting evidence found
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.