ACS Peptide Testing Labs is an independent analytical laboratory in Sun City Center, Florida. We test research peptides for purity, identity, contaminants, endotoxin, and moisture, and we do not sell the material we analyze.
We run analytical chemistry on peptide samples submitted by research laboratories, compounding pharmacies, and suppliers who need an outside opinion on what is actually in a vial. Work is performed at one facility rather than brokered out, which keeps sample handling and data review under one quality system.
We do not manufacture, compound, resell, or recommend peptide products, and we do not provide clinical or dosing advice. That separation is the point of a third-party laboratory: the result has to be usable whether it is favorable or not. If you are evaluating labs, our guide on how to choose a peptide testing lab lists the questions worth asking any provider, including us.
Chromatographic purity, related-substance profiling, and assay against a reference standard.
Molecular weight confirmation and sequence identity, including detection of deletion and oxidation impurities.
Heavy metal and elemental contaminant screening at trace concentrations.
Bacterial endotoxin quantification for injectable-route research material.
Residual moisture in lyophilized peptide powder, which drives stability and net peptide content.
Method selection depends on the question being asked. Our comparison of HPLC versus mass spectrometry for peptide analysis explains why purity and identity are separate tests, and peptide purity testing covers what a purity number does and does not tell you.
Technical content on this site is reviewed for analytical accuracy before publication. Method explanations, purity thresholds, and COA guidance are written against the same references our analysts use. You can read more about our reviewer on the Roger Brown author page.
Analyses are run to validated analytical methodology with documented calibration and reference standards.
Purity by RP-HPLC, identity confirmation by LC-MS, plus contaminant, endotoxin, and moisture panels in-house.
Standard reporting window from sample receipt at our Sun City Center, Florida laboratory.
Every report includes chromatograms, method parameters, and sample chain-of-custody so results can be verified.
More detail on our instrumentation, analysts, and quality system is on the about our peptide testing laboratory page, or read how to verify a peptide COA.
ACS Peptide Testing Labs is an independent analytical laboratory in Sun City Center, Florida. Samples are received, prepared, and analyzed at that single facility by our own analysts, and reports are reviewed before release.
Yes. We do not manufacture, resell, or distribute peptides. Testing revenue comes from analysis only, which is what makes a third-party certificate of analysis meaningful.
Analyses follow validated analytical methodology, with method design informed by USP and ICH guidance for chromatographic purity, identity, and stability work.
Standard turnaround is 9 to 11 business days from sample receipt at the laboratory. That window includes sample preparation, analysis, data review, and report release.
Every report includes chromatograms, the analytical method parameters, and sample identifiers. A second laboratory can reproduce the analysis from that information, which is the practical test of whether a COA is trustworthy.
Tell us the compound, the format, and what you need to demonstrate. We will confirm the right panel, pricing, and shipping instructions before you ship anything.