Glutathione (GSH) is composed of three amino acids combined to produce a peptide that is both a powerful antioxidant and performs several critical roles in the body. According to researchers this peptide is so essential to optimum health that the level of Glutathione in cells could possibly be used to predict how long an organism lives. One of the reasons why Glutathione is so important for optimum health is that it’s present in every cell in the body. One way antioxidants like glutathione help maintain good physical health is by neutralizing free radicals, which can cause cellular damage through oxidation. Since glutathione is naturally present within all types of cells, it is in a prime position to do this. It’s considered one of the most important antioxidants in the human body.