They do work, but some people stop taking them due to side effects, which include nausea, vomiting, diarrhea, or constipation
There are no known contraindications specific to endometriosis
Some users take their injection on a specific day of the week that allows them to manage the initial side effect window at home where they have easy access to fluids
The finding that younger people with COVID-19 also are glutathione deficient and have elevated oxidative stress and oxidant damage is really surprising, because we do not normally see these defects in younger age groups
Recent studies suggest that GLP-1 also mediates the metabolic effects of metformin, gut microbiota, and bariatric surgery 3,4,5,6
Uptake of acetyl-L-carnitine in the brain [PMID: 2747840] Laboratory literature summary: Uptake of acetyl-L-carnitine in the brain