It usually takes eight to sixteen weeks to see results
Peng S, Peng Z, Qin M, Huang L, Zhao B, Wei L, et al
Longitudinal monitoring of lipase and amylase in adults with type 2 diabetes and obesity: evidence from two phase 3 randomized clinical trials with the once-daily GLP-1 analog liraglutide [poster presentation at Digestive Disease Week 2012]
IV therapy delivers glutathione directly into the bloodstream over time, allowing for higher total doses and more controlled absorption
So if your aim is longterm endurance improvements or a subtle shift in how your body uses fuel, plan for daily doses with meals especially carbohydraterich meals over several months
(This is quite common in the drug-development and launch process.) In the drugmaker-sponsored early trials, over 50% of participants lost more than 15% of their body weight