The timeline reflects how the underlying biology actually works
Mol Cell Endocrinol (2020) 500:110631
While your body can produce some cysteine from other amino acids like methionine and serine, it is often considered "conditionally essential." This means that under certain circumstances, such as high physical stress or poor nutrient intake, your body may not produce enough on its own
The fundamental difference lies in the selectivity profile: MT-I primarily activates the melanogenesis pathway in melanocytes via MC1R, while MT-II thanks to its cyclic structure binds to MC1R, MC3R, MC4R and MC5R, also engaging neuronal pathways in the hypothalamus
Wegovy (weight management, cardiovascular risk, MASH): Coverage is less consistent
Saxenda is used to help with weight loss and long-term weight management in: adults and some children who have obesity adults who are overweight and have a weight-related condition This drug is meant to be part of a long-term weight management plan that includes a reduced-calorie diet and increased exercise