It may support skin firmness, hydration, and a more refreshed-looking complexion over time, not through quick fixes, but through consistent, long-term care
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The oxygen of phenolic hydroxyl group in tyrosine residue is the proximal ligand of heme iron and is probably deprotonated with negative charge, so that it can lead to the stabilization of irons high oxidation states
2025, p
Peer review Peer review information Nature Communications thanks Hongli Mao, and the other, anonymous, reviewer for their contribution to the peer review of this work