Independent analysis of peptide purity data, vendor verification methodology, and investigative reports from the BiohackTested editorial team. No sponsored content. No pay-for-placement reviews.
Most peptide vendor "Certificates of Analysis" are marketing documents — not scientific evidence. Learn how to spot fake COAs, manipulated purity claims, and the difference between a vendor PDF and a real third-party HPLC report.
Read full report →Single, dual and triple receptor agonism explained: how semaglutide, tirzepatide and retatrutide differ in mechanism, what the STEP, SURMOUNT and TRIUMPH trials show, and how to pick the right compound for your research question.
Read full report →Why a GHRH analog and a selective ghrelin-receptor agonist get paired, what the DAC versus no-DAC question changes, the human synergy and pharmacokinetic data, reconstitution ratios, pulsatile timing, and where the evidence runs out.
Read full report →Which diluent, how much of it, which syringe mark, and how the vial is stored afterwards. Covers lyophilization effects on stability, bacteriostatic versus sterile water, U-100 unit maths, documented degradation pathways and the limits of the usual vial-life advice.
Read full report →What the two molecules actually are, why their mechanisms converge on Akt and eNOS, what the only controlled combination study found in a rat Achilles model, where the human data stop, and how to handle two vials with different stability clocks.
Read full report →ACTH(4-7)PGP versus tuftsin-derived TP-7: the shared enkephalinase mechanism, why the GABA-A claim is a clinical inference rather than a molecular result, the 6 to 18 mg per day clinical dosing against 200 to 400 microgram online protocols, and how to verify two vials that share a tail and a name.
Read full report →A catalog and certificate check across 12 reviewed vendors: who stocks the three incretin research peptides, under which code names, and what the batch reports really show. Only one EU vendor stocks all three compounds, and it publishes no certificate for any of them.
Read full report →We're currently preparing independent batch analyses, vendor comparison deep-dives, and HPLC interpretation guides. Subscribe to our research feed or check back weekly.