Betadine Test of 2 of my Favourite Vitamin C Serums! , Episode 1, Sooo, im sure yall have seen this betadine test going all around over the internet, and i wanted to test this out as well!!, I was Assay for quantitative determination of glutathione and glutathione disulfide levels using enzymatic recycling method Nature Protocols Glutathione Quantification GSSG GSH Quantification Kit Oxidized Reduced Glutathione Assay Dojindo Glutathione Index Test Measure Antioxidant Levels At Home Fatty Acid Labs