Independent Testing Labs
Third-party analytical laboratories that independently test peptide purity, identity, and safety. Always verify your research compounds before use.
Community Recommended
Janoshik Analytical
Prague, Czech Republic
The most widely used independent lab in the peptide research community. Janoshik provides affordable, fast-turnaround HPLC purity and mass spec identity testing with publicly verifiable results.
Services offered
- HPLC purity analysis
- Mass spectrometry identification
- Amino acid analysis
- Endotoxin testing
- Sterility testing
All Labs
Chromate
United States
US-based analytical chemistry laboratory offering comprehensive peptide testing services including purity, identity, and contaminant screening for research applications.
Services offered
- HPLC purity testing
- Mass spectrometry
- Residual solvent analysis
- Heavy metals screening
MZ Biolabs
Germany
German analytical laboratory specializing in peptide and protein analysis. Operates under strict European quality standards with ISO-accredited testing procedures.
Services offered
- Peptide purity analysis
- Mass spectrometry identification
- Endotoxin (LAL) testing
- Microbiological testing
Colmaric Analyticals
United States
FDA-registered pharmaceutical testing laboratory providing cGMP-compliant analytical services. Specializes in method development, raw material identity, and stability testing.
Services offered
- HPLC method development and validation
- Raw material testing
- Stability studies
- Certificate of Analysis generation
Vanguard Laboratory
United States
Full-service analytical testing laboratory supporting research compound verification. Offers custom protocol development for unique testing requirements.
Services offered
- HPLC purity analysis
- Identity confirmation
- Certificate of Analysis verification
- Custom analytical protocols
Forever Young Pharmacy
United States
Compounding pharmacy with integrated in-house testing capabilities. Provides potency verification and sterility assurance for compounded peptide formulations.
Services offered
- Potency verification
- Sterility testing
- Endotoxin screening
- Beyond-use date testing
BioRegen
United Kingdom
UK-based laboratory offering peptide quality testing services. Provides accessible analytical testing for the European research community with competitive pricing.
Services offered
- HPLC purity testing
- Mass spectrometry
- Peptide identity verification
- Batch consistency testing
Prime Analytical
United States
Analytical chemistry laboratory focused on research compound characterization. Offers impurity profiling and quantitative analysis for peptide researchers.
Services offered
- HPLC analysis
- GC-MS identification
- Quantitative analysis
- Impurity profiling
SR Biolabs
United States
Specializes in independent peptide purity analysis and identity verification. Trusted by the research community for COA verification and contaminant screening.
Services offered
- HPLC purity analysis
- Mass spectrometry identification
- Certificate of Analysis verification
- Contaminant screening
Veritas Analytic
United States
Independent analytical laboratory providing identity and purity verification services with regulatory-grade documentation suitable for research compliance requirements.
Services offered
- Identity confirmation via mass spectrometry
- HPLC purity determination
- Endotoxin (LAL) testing
- Regulatory-grade documentation
Why Independent Testing Matters
Verify Identity
Mass spectrometry confirms the compound is actually what the label claims. Mislabeled or substituted products are more common than most researchers assume.
Confirm Purity
HPLC analysis reveals the true percentage of active compound vs. degradation products, synthesis byproducts, and other impurities that affect research outcomes.
Ensure Safety
Endotoxin and sterility testing detect bacterial contamination that can compromise cell cultures, animal models, and produce misleading experimental results.
Hold Suppliers Accountable
Independent verification separates trustworthy suppliers from those shipping substandard material. Published test results raise the quality bar across the industry.
What Tests to Request
HPLC Purity
>98% research gradeHigh-Performance Liquid Chromatography separates a sample into its components and quantifies the target peptide as a percentage of total content. Look for >98% purity for research-grade material.
Mass Spectrometry
±1 Da of expected massMeasures the molecular weight of the compound to confirm its identity. The observed mass should match the theoretical mass within ±1 Da for peptides.
Endotoxin (LAL) Testing
<5 EU/mg acceptableLimulus Amebocyte Lysate assay detects bacterial endotoxins. Critical for any injectable research application. Acceptable levels are typically <5 EU/mg.
Sterility Testing
No growth at 14 daysCulture-based assay confirming the absence of viable microorganisms. Essential for compounds used in cell culture or in vivo research protocols.
Evaluate Your COA
Already have test results? Use our tools to interpret them and spot potential red flags.