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There is also some limited evidence suggesting that individuals who carry certain polymorphisms in genes involved in vitamin C transport and detoxification mechanisms may have lower plasma vitamin C concentrations even with high vitamin C intakes (see also Vascular complications of diabetes mellitus) (reviewed in 27)

doi: 10.1126/science.aat5314 418 PoonDCHoYSChiuKWongHLChangRC

doi: 10.1159/000027475 31 MichaelRBronAJ
Exploring alternative antibacterials: a comparative analysis of antibiotics and naturally derived biopolymers

A systematic review of 13 clinical studies also supported these findings [72]

Dry skin can be stubborn
