That structural gap is one reason the evidence base looks the way it does
Never inject same spot twice in a row
We urge consumers to exercise extreme caution when buying medicines and medical devices online including through social media and other digital platforms. The latest list of products tested and found to be counterfeit (results of the testing found no GLP-1 or analogues identified), included: STDEI GLP-1 Weight Loss Oral Solution BuildLeaf Tirzepatide GLP-1 Herbal Oral Liquid HHVB GLP-1 Six In-One Health Solution Oral Liquid EQVP GLP-1 Six In-One Health Solution Oral Liquid Diapason GLP-1 Seven In-One Health Solution Oral Liquid BuildLeaf GLP-1 Eight-In-One Fit & Vital Oral Solution LERCEA GLP-1 Metabolic Balance Oral Ampoules Croaie Tipoleptide GLP-1 + GIP Weight Management HHVB-GLP-1 Nano Microneedle Patch HHVB GLP-1 Moringa Slimming & Health Boost Drops The warning reflects growing concern among regulators about online marketing of unapproved weight-loss injections and compounded products that claim to replicate established GLP-1 medicines
Real-world studies have confirmed these results: a 2025 study published in Diabetes, Obesity and Metabolism found tirzepatide was associated with greater weight loss over 6 months than semaglutide in patients without diabetes, consistent with the trial data
GLP-1 is produced in the nucleus of the solitary tract in the brainstem, which projects to numerous areas of the CNS expressing the GLP-1 receptor (GLP-1R), such as the hypothalamus (Dickson et al., 2012)
Once-weekly semaglutide in adolescents with obesity (STEP TEENS)
