The researchers wrote that daily consumption of [glutathione] supplements was effective at increasing body compartment stores. The study was funded by Kyowa Hakko USA, which sells its trademarked oral glutathione under the Setria brand
GHK-Cu is legally used as a topical cosmetic ingredient, but injectable or systemic use is unlicensed
Connective tissue recovery: It is commonly used for tendon, ligament, and joint-support goals where recovery is slow
Gastrointestinal Distress In some cases, taking glutathione supplements can lead to gastrointestinal issues, such as nausea, vomiting, diarrhea, or abdominal pain
Most side effects are mild and tend to disappear as your body adjusts to the supplement
Primary concerns include increased injection site reactions from multiple subcutaneous injections, difficulty attributing adverse effects to the correct agent, additional cost without proven benefit, and potential quality variability in compounded lipotropic products