When certain parts of a hair color enzyme get damaged by oxidation, it doesn't work as well, which can lead to hair gradually losing its color.
20
0
Evidence from Studies
Supporting (1)
20
Community contributions welcome
20
Senile hair graying: H2O2‐mediated oxidative stress affects human hair color by blunting methionine sulfoxide repair
Cross-Sectional Study
Human & In Vitro
2009 JulContradicting (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.