What bloodwork actually matters when you run peptides

You do not need an exhaustive panel. You need the markers that actually move on peptides and tell you something useful.

Baseline (before your first cycle): CBC with differential, comprehensive metabolic panel (CMP), lipid panel, A1C, fasting insulin, IGF-1 if running GH-class peptides, total testosterone if relevant.

For GLP / GIP class (semaglutide, tirzepatide, retatrutide): Lipid panel and ALT/AST every 3 months. A1C every 6 months. Fasting glucose periodically.

For GH secretagogues (Ipamorelin, CJC-1295): IGF-1 at baseline and at week 8 of cycle. Fasting glucose at the same intervals.

For BPC-157, TB-500, GHK-Cu: No specific panel needed. CMP annually for general health.

Where to pull from: in the US, ownyourlabs.com or marekhealth.com without a prescription. Quest and LabCorp direct in some states. Your insurance + PCP if you have a sympathetic doc.

Read the trend, not the snapshot. One out-of-range value rarely means anything. Three pulls over six months telling the same story does.