glutathione and citrulline A critical review of malate supplementation exercise performance | European Journal of Applied Physiology L-Citrulline Supplement | Pure L-Citrulline
Description
Storage: -20C lyophilized (stable up to 2 years)

Vitamin B12 adds another layer

you just have one vial, a set of needles, and a schedule to follow

That is not a marginal improvement
