descriptive
Analysis v1
Strong Support
Gray and white hair naturally builds up hydrogen peroxide inside the hair shaft, kind of like rust forming, and that’s a sign the hair is under more chemical stress from the inside.
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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 and white hair has high levels of hydrogen peroxide, which matches what the claim says, and they used the same method to measure it.
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.