It is important to note that under the World Anti-Doping Code, athletes are strictly liable, meaning they are ultimately responsible for what is in their systems
MC4R is also posited to have a role in energy expenditure, with its activation possibly leading to an increase in energy output, which could contribute to weight reduction
Glutathione tackles this at a biological level by: Inhibiting tyrosinase activity to slow down melanin production Shifting melanogenesis from eumelanin (darker) to pheomelanin (lighter) Acting as an antioxidant to reduce the oxidative stress that triggers hyperpigmentation A 2025 systematic review in the International Journal of Dermatology confirms that oral glutathione at doses of 250 mg twice daily and 500 mg once daily showed a significant reduction in melanin index compared to placebo, particularly in sun-exposed areas like the face and wrists
These medications include semaglutide (marketed as Ozempic for diabetes and Wegovy for weight management), liraglutide (Victoza for diabetes and Saxenda for weight management), dulaglutide (Trulicity for diabetes), and tirzepatide (Mounjaro for diabetes), which combines GLP-1 action with glucose-dependent insulinotropic polypeptide (GIP) receptor agonism
Are there safety concerns specific to each peptide
