Understanding the Legal Risks of BPC 157 and Other Unapproved Peptides Holt Law Last week @fda sends out clarification on who can and cannot compound #glp1 like #tirzeaptide and #semaglutide and this week ProRx 503b shuts down GLP 1 compounding while @martymakary is photographed holding bootleg # FDA Peptide Reclassification: What This Means For Weight Loss, Recovery, And More Category 1 vs. Category 2. The FDA's peptide update, explained. Category 2 peptides are on the FDA's difficult to compound list, which effectively blocks licensed pharmacies from producing them. Category 1 means