In an animal-based study, no significant adverse effects were reported in dogs, who were administered up to 300 mg of glutathione per kg body weight every day for 26 weeks
However, losing weight will not fix skin sagging issues, which is usually at least part of the equation by 50, if not sooner
4.2.4 Adverse outcomes or potential threats, harm or losses The adverse outcomes are not having sufficient numerical data or being limited to one or two included studies or the outcomes being reported in variable units such as nanomolar, micromolar or millimolar that are difficult to be converted into a single unit, due to the generation of large standard deviations or the SEM
DOI: 10.1016/S0166-2236(03)00032-8
Mechanisms of antioxidant action of ubiquinol-10 for low-density lipoprotein
Always use as directed and consult a healthcare provider.