Hi Sandra
There are some glutathione blood tests available online however we are not convinced as to their accuracy. There is no gold standard glutathione test that all pathology laboratories use (such as for example blood glucose or cholesterol). The main problem is that glutathione is an unstable component found in blood and unless the sample is treated and refrigerated immediately the level of glutathione can drop in the blood sample giving a false reading.
The good news is that there is a new and proven way to supplement glutathione. We suggest you search with your browser the word:- gamma-glutamylcysteine. Please be wary of other supplements that claim to increase your glutathione such as NAC or glutathione itself. The reason why these two supplements don’t work can be seen here. https://www.glutathionereporter.com/n-acetylcysteine-nac-cannot-increase-cellular-glutathione-levels/ and https://www.glutathionereporter.com/glutathione-supplementation-cannot-increase-cellular-glutathione-levels/