Much of what is sold online is labeled research only, and the purity of those products is highly variable, with independent testing repeatedly finding under-dosed, degraded, or mislabeled peptides across the unregulated market
It showed no negative impact on carbohydrate metabolism
C.FriedmanK.SherryJ.BrazzilloK.GenobleL.BhargavaP.et al (2011)
Food and Drug Administration (FDA), and are not intended to diagnose, treat, cure, or prevent any disease or medical condition
The FDA has not approved these shots as weight loss treatments, and results depend heavily on diet, activity level, and overall health