For small-volume subcutaneous injections with a thin insulin needle into the fat layer, modern clinical guidance generally considers aspiration unnecessary the subcutaneous fat has few large vessels, the needle is tiny, and aspiration adds handling
Also the concentration of cysteine in commonly consumed foods is too low to meet the demand
Although the two products may appear nearly identical, bacteriostatic water and sterile water serve slightly different purposes in laboratory environments
Menzel J, Jabakhanji A, Biemann R, Mai K, Abraham K, Weikert C
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Interestingly, intravenous injections of glutathione have been used for years but there is not even a single clinical trial evaluating its efficacy