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doi: 10.1515/bmc-2012-0045

Systematic re-evaluation of the bis(2-hydroxyethyl)disulfide (HEDS) assay reveals an alternative mechanism and activity of glutaredoxins

For now, understand that bacteriostatic water for peptides is the standard for multi-dose vials because the benzyl alcohol preservative prevents bacterial growth between uses

Thiamin supplements may also help for people who experience: malabsorption syndrome severe, prolonged vomiting gastric bypass surgery renal replacement therapy hyperthyroidism People who are pregnant, lactating, or use diuretics may also benefit from vitamin B1 supplements

One gentle preservative

This makes Kojic acid a strong contender for anyone looking for vitamin C vs Kojic acid