ACS Laboratory vs Janoshik Analytical
A US-based, independent alternative to overseas peptide testing labs — with the same core analytical methods and a domestic chain of custody.
Side-by-side comparison
| Attribute | ACS Laboratory | Janoshik Analytical |
|---|---|---|
| Location | Sun City Center, FL, USA | Czech Republic (EU) |
| Accreditation | independent | independent |
| Standards | ASTM D8558 (peptides), contributing to ASTM F49 | Not published |
| DEA registered | Yes | N/A (EU) |
| Turnaround | 5–7 business days | Varies + intl. shipping |
| HPLC purity | Yes | Yes |
| Mass spectrometry ID | Yes | Yes |
| Endotoxin (LAL) | Yes | Limited |
| Karl Fischer moisture | Yes | Limited |
| Stability programs | Yes | Limited |
| US chain of custody | Yes | No |
Why researchers pick a US lab
International shipping of biological samples adds days at each customs step, and returned Certificates of Analysis from foreign labs are harder to introduce into US regulatory and legal workflows. ACS Laboratory operates under ASTM D8558 and is contributing to the upcoming ASTM F49 committee on peptide therapeutic standards.
Same methods, different jurisdiction
Both labs report HPLC purity and mass spectrometry identity. The difference is the operating framework: ACS provides independent third-party verification under documented method validation with DEA registration for controlled analysis.
Related reading
Frequently asked questions
Frequently Asked Questions
Yes. ACS is an independent peptide testing lab based in Sun City Center, Florida, USA. Janoshik operates out of the Czech Republic. Researchers, compounding pharmacies, and biotech companies that need US-domiciled analytical data with US chain of custody use ACS.
ACS reports Certificates of Analysis in 5–7 business days after sample receipt. Turnaround from EU-based labs adds international shipping in both directions, which typically extends the round trip.
Both labs use reversed-phase HPLC for purity and mass spectrometry for identity. ACS is independent, DEA registered for controlled analysis, operates under ASTM D8558 for peptide characterization, and is contributing to the new ASTM F49 committee on peptide therapeutic standards.
Compounding pharmacies operating under 503A/503B typically prefer US-based independent labs for both regulatory alignment and defensibility of data if audited. ACS is built around that use case.
Yes. Per-sample pricing drops at 5+ samples and again at 20+. Compounding pharmacies and research labs running quarterly QA panels qualify for standing customer pricing.
Yes. ACS tests both raw peptide API and finished products (lyophilized vials, dissolvable strips, reconstituted solutions). We also offer stability programs, endotoxin testing, and Karl Fischer moisture analysis.