You probably already know someone doing peptides — the amino acids that form the basis of popular new drug treatments like Ozempic and Wegovy. Today there are peptides meant to help with everything from weight loss, to cellular regeneration, to improved eye contact while talking. In San Francisco, there are even organized “peptide raves.” Yet most of these underground peptides haven’t been approved by regulators for human use in the US. So where are they coming from? And how do they get here? On