does glutathione injection need to be refrigerated Injections, 200mg/mL Glutathione is the best for

Biochemical Pharmacology (NLM) .Read source (2021)

L-Ascorbic acid (15 percent) is a pure, pharmaceutical-grade vitamin C that brightens, protects, and firms the skin

Our genomic analysis showed a near absence of GSH system in these organisms [Additional file 1

Different reconstitution volumes produce different concentrations from the same vial: 50mg vial + 2ml water = 25mg/ml (very concentrated) 50mg vial + 2.5ml water = 20mg/ml (concentrated) 50mg vial + 5ml water = 10mg/ml (standard) 50mg vial + 10ml water = 5mg/ml (dilute) Higher concentrations require smaller injection volumes but may exceed solubility limits for some peptides

Zhao G, Zhang X, Wang H, Chen Z