cysteine glutathione detection Highly selective and sensitive of over and homocysteine with a turn-on fluorescent biosensor based on cysteamine-stabilized CdTe quantum dots Assessment at the Single-Cell Level
Description
Taking them together provides both the "finished product" (glutathione) for immediate use and the "raw materials" (NAC) to support the bodys ongoing internal production

Animal studies show that gadolinium can cause low glutathione levels.[ref] Mercury is another heavy metal that utilizes glutathione in the detoxification pathways.[ref] Arsenic exposure causes increased glutathione usage
doi: 10.1186/1479-5876-11-93
The IL-13 dose was five micrograms and the GGsTop was 0.5 mg/kg