Why is the GLP-1 black market so dangerous?

Because a peptide is cheap to copy. Fake Ozempic pens filled with insulin sent buyers in Austria and the UK to hospital. Chinese labs ship raw semaglutide powder online as "research peptides", and wellness clinics stack it with unapproved healing peptides like BPC-157. If it did not come from a pharmacy with your name on the label, do not inject it.