how are glutathione and nac related Effects of N-acetylcysteine, oral (GSH) a novel sublingual form of GSH on oxidative stress markers: A comparative crossover study Vitamin D, Glutathione, and NAC:
Description
A preservative doesn't stop oxidation of vitamin C itself, but it does help protect the formula from microbial contamination

10.1152/physiolgenomics.00263.2006

Hospira Bacteriostatic Sodium Chloride is a sterile, multiple-dose vial from which repeated withdrawals may be made to dilute or dissolve solutions and medication

Once inserted into the rectum, the suppository comes into contact with body heat, causing it to dissolve or melt
