glutathione supplement effectiveness Evaluating Oral Plus Ascorbic Acid, Alpha-lipoic Acid, and Zinc Aspartate as a Skin-lightening Agent: An Indonesian Multicenter, Randomized, Controlled Trial | JCAD Effects of N-acetylcysteine, oral glutathione

Genetic classification of lung adenocarcinoma based on array-based comparative genomic hybridization analysis: its association with clinicopathologic features

Baird L, Lleres D, Swift S, Dinkova-Kostova AT

You can, but only if you intend to use the entire contents of the vial immediately after mixing

Scott RT 3rd et al (2020) Mitochondrial DNA content is not predictive of reproductive competence in euploid blastocysts

We note, though, that many experiments demonstrating in vitro and in vivo effects of these drugs have been carried out (as summarized in the Introduction) and that glutathione-like activity (including recycling of ascorbic acid and the transformation of dehydroascorbic acid back into ascorbic acid) has been demonstrated for both intact GPCR and for many of the peptides tested here [48,49,50,51,52]

If your protocol uses one vial per month, reconstitute monthly rather than preparing multiple vials simultaneously