Melanotan vs. Astaxanthin for Glowing Skin Common supplement taken by millions of people is linked to heart failure in recent study: A large real world analysis reports that adults with chronic insomnia who used melatonin for a year or Glutathione is often called the master antioxidant, But its actually regulated by melatonin (PMID: 20868358), Melatonin has been seen to have 10x the antioxidant capacity than glutathione, Besides Melatonin effectiveness in amelioration of oxidative stress and strengthening of antioxidant defense system: Findings from a systematic review and doseresponse meta analysis of controlled clinical trials Clinical Nutrition ESPEN Glutathione is often called the master antioxidant, But its actually regulated by melatonin (PMID: 20868358), Melatonin has been seen to have 10x the antioxidant capacity than glutathione, Besides