glutathione route of administration for skin lightening: a regnant myth or evidence-based verity? The Benefits of Glutathione Injections
Description
What sets it apart from regular water is that it contains 0.9% benzyl alcohol , which acts as a preservative to prevent the growth of bacteria and ensure the solution remains safe and effective over time

The staining procedure, image acquisition, threshold settings were identical for the entire set of patient samples

Green RM, Travers AM, Howe Y, McDougle CJ

This is something that drinking water alone cannot always achieve
