It is under investigation in preclinical and clinical studies on overweight, obesity, and metabolic disorders, where researchers have examined its effects on body weight and energy intake, including when combined with GLP 1 receptor agonists such as semaglutide, but it is not an approved therapy
In general, individuals pursuing skin lightening goals often require higher levels of Glutathione supplementation than those seeking general wellness benefits
And somewhere on the label, in small print, are four words that tell you everything: For Research Use Only
Frontiers in endocrinology
Worse yet, a 2024 study suggests that TB-500 itself may not even be the active compound, but that its healing activity might come from a smaller piece it breaks down into in the body
What Research Says About Oral Glutathione A randomized, double-blind, placebo-controlled study found that participants taking 500 mg of oral glutathione daily showed decreased melanin indices at all six measured sites after just 4 weeks of consistent use