穀 胱 甘 肽 glutathione 穀胱甘肽】是什麼？美白、抗老、排毒都和它有關？穀胱甘肽功效解析。 什麼是「穀胱甘肽」？3大功效分享與使用注意事項！ crassna

While glutathione handles the antioxidant protection, NAD+ supports cellular energy production and DNA repair

Intravenously administered vitamin C achieves plasma concentrations unattainable through oral intake where intestinal absorption is limited and excess is excreted in urine

A 1987 study on mice determined oral glutathione to be nontoxic,27 and a 2017 toxicity study (also on mice) found that glutathione's LD (the amount of a substance needed to kill 50% of all test animals in one dose) was 5g/kg.6 An equivalent toxic dose for an 80kg human would be 32.5g, which is more than 32 times the highest amounts used in clinical studies

Many factors can increase cellular exposure to oxidative insult, and therefore increase cellular consumption of nutrientssuch as glutathionethat provide antioxidant activity