The enzymes and acids in your stomach are designed to break down proteins, and since glutathione is a protein-like structure (a tripeptide), it is frequently broken down into its individual amino acids before it ever reaches the bloodstream
For many practical purposes it is more convenient to discuss the logarithmic constant, pK a pK a = -log 10 K a The larger the value of pK a , the smaller the extent of dissociation at any given pH - that is, the weaker the acid
However, no single OS marker is representative in determining how healthy an individual is, or in predicting his life expectancy, while a set of clinical biomarkers, including lipid peroxidation and protein oxidation products, and antioxidative acting enzymes, could be used to delineate the oxidation status of a person [328]
Sometimes the patches spread slowly, sometimes fast