mechanistic
Analysis v1
Strong Support
Taking L-methionine might help stop hair from going gray by protecting proteins in hair follicles, at least in lab tests.
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
2009 JulThe study found that adding L-methionine in lab tests stops damage to hair proteins that can lead to graying, which directly supports the idea that L-methionine might help prevent gray hair.
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.