The trade-off is that 1mg and 2mg doses become very small volumes (10 and 20 units respectively), where measurement precision on cheaper syringes can be questionable
Glutathione which is a strong antioxidant to your skin does wonders by fighting free radicals and lowering oxidative stress leading to an even brighter skin tone, reduced fine lines and enhanced collagen production
For more severe cases or when systemic inflammation is significant, combining both provides broader coverage
Some supplements may raise glutathione levels or support related antioxidant pathways, but the evidence is mixed and depends on the form used and the reason for taking it
Am J Physiol Lung Cell Mol Physiol 270 , L1031L1039
mL mg/mL Reconstituting your vial Reconstitution is adding liquid, almost always bacteriostatic water, to a freeze-dried (lyophilized) peptide so you can measure and inject it