We offer 6 tests. One for every need.
Whether you want a quick purity check or full batch validation — we have a panel for it. Same FDA-registered lab on every order, same COA, same 3–5 day turnaround. Pick your test below.
Purity Analysis
The fastest way to know if your peptide is pure. A single HPLC run measures what percentage of your sample is actually the target compound — catching underdosing, degradation, and process impurities.
Tests included
HPLC Purity Analysis
Measures the percentage of target peptide in your sample. Detects underdosing, degradation, and synthesis impurities.
Branded CheckPeptide COA
Professionally formatted certificate with your COA ID, test results, methodology, and lab accreditation details.
Clear result summary
Plain-English interpretation of your results — not just raw numbers.
Turnaround
3–5 business days standard. Rush options available — email support@checkpeptide.com after ordering.
Who this is for
- First-time peptide users wanting basic verification
- Budget-conscious buyers checking purity only
- Quick spot-check on a known compound
Sample requirement
1 vial. Lyophilized or reconstituted. Vial is consumed during testing and not returned.
Essential Panel
Purity plus identity confirmation — the core verification standard. Tells you both how pure your sample is AND whether it's actually the compound on the label.
Tests included
HPLC Purity Analysis
Measures the percentage of target peptide in your sample.
LC-MS Identity Confirmation
Mass spectrometry confirms the molecular identity of your compound. Tells you definitively whether what's in the vial matches the label.
Branded CheckPeptide COA
Full certificate with purity percentage, identity confirmation result, methodology, and lab accreditation.
Turnaround
3–5 business days standard. Rush options available — email support@checkpeptide.com after ordering.
Who this is for
- Anyone using peptides who wants real verification
- Buyers who want to confirm compound identity
- The recommended starting point for most customers
Sample requirement
1 vial. Lyophilized or reconstituted. Vial is consumed during testing and not returned.
Safety Panel
Deeper risk screening for buyers who want to know their compound is not just pure and correctly labeled, but also free from the contaminants that cause real harm.
Tests included
HPLC Purity Analysis
Measures purity percentage of target compound.
LC-MS Identity Confirmation
Confirms compound matches the label.
Heavy Metals (ICP-MS)
Screens for lead, arsenic, mercury, and cadmium. Grey-market synthesis often leaves toxic metal residues.
Endotoxin Testing
Detects bacterial endotoxins — a critical safety check for any injectable compound. Even trace amounts cause severe inflammatory responses.
Turnaround
3–5 business days standard. Endotoxin testing minimum 48 hours. Rush available on non-micro tests.
Who this is for
- Regular peptide users who inject compounds
- Buyers who want contamination screening beyond purity
- Anyone sourcing from an unfamiliar vendor
Sample requirement
3 vials required. Vials are consumed during testing and not returned.
Advanced Panel
The same testing standard used by compounding pharmacies. Eight tests covering purity, identity, quantification, and every major safety parameter.
Tests included
HPLC Purity Analysis
Full purity measurement.
LC-MS Identity Confirmation
Molecular identity verification.
Peptide Quantification
Exact mg/mL concentration — confirms stated dose is accurate.
Heavy Metals (ICP-MS)
Lead, arsenic, mercury, cadmium screening.
Endotoxin Testing
Bacterial endotoxin detection.
Sterility Testing
Confirms absence of viable microorganisms.
Residual Solvents
Detects toxic synthesis solvent residues.
Moisture Content
Measures water content — affects dosing accuracy in lyophilized peptides.
Turnaround
3–5 business days standard. Sterility testing minimum 48 hours. Rush available on non-micro tests.
Who this is for
- High-frequency peptide users wanting full documentation
- Clinics and practitioners requiring pharma-grade verification
- Anyone who wants the complete picture
Sample requirement
7 vials required. Vials are consumed during testing and not returned.
Advanced Panel + Amino Acid
Everything in the Advanced Panel plus amino acid composition analysis — the most rigorous identity check available. Catches substitution fraud that mass spectrometry alone can miss.
Tests included
Everything in Advanced Panel
All 8 tests from the Advanced Panel included.
Amino Acid Composition Analysis
Confirms the exact amino acid sequence and composition of your peptide. The gold standard for identity verification — catches substitution fraud where a cheaper peptide is sold as a more expensive one with a similar molecular weight.
Why amino acid analysis matters
LC-MS confirms molecular weight — but two different peptides can have the same weight. Amino acid analysis confirms the exact building blocks, making substitution fraud impossible to hide.
Who this is for
- High-value compound verification (GLP-1s, growth peptides)
- Anyone who needs court-defensible documentation
- Vendors wanting the highest verification standard
Sample requirement
7 vials required. Vials are consumed during testing and not returned.
Vendor Validation
Statistically defensible batch certification across 3 representative samples from the same batch. 9 tests per sample — the documentation standard that builds customer trust and provides legal protection.
9 tests per sample (×3 samples)
HPLC Purity Analysis
Measures the exact purity percentage of the target compound.
Peptide Quantification
Exact mg/mL concentration — confirms stated dose is accurate across all 3 samples.
LC-MS Identity Confirmation
Confirms molecular identity across all 3 samples — can't be fooled by look-alikes.
Heavy Metals (ICP-MS)
Screens for lead, arsenic, mercury, and cadmium from synthesis catalysts.
Endotoxin Testing
Detects bacterial endotoxins — critical safety check for any injectable compound.
Sterility Testing
Confirms absence of viable microorganisms in all 3 samples.
Residual Solvents
Detects toxic organic solvent residues from the synthesis process.
Moisture Content
Water content measurement — affects dosing accuracy in lyophilized peptides.
Amino Acid Analysis
Confirms exact amino acid composition — the gold standard for identity. Catches substitution fraud that mass spectrometry alone can miss.
Why 3 samples from one batch?
Testing a single vial tells you about that vial. Testing 3 representative samples from the same batch tells you about the batch — which is what your customers are actually buying. Statistically defensible batch certification requires multiple sample points.
Who this is for
- Peptide vendors and suppliers
- Compounding facilities and clinics
- Anyone selling peptides who needs third-party documentation
- Group buys — one submission, split the cost
Questions?
Email labs@checkpeptide.com for vendor inquiries, group buys, or recurring testing programs.
Compare all panels.
| Test | Purity $199 |
Essential $399 |
Safety $799 |
Advanced $1,599 |
Adv+Amino $2,299 |
Vendor $3,499 |
|---|---|---|---|---|---|---|
| HPLC Purity | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| LC-MS Identity | — | ✓ | ✓ | ✓ | ✓ | ✓ |
| Quantification | — | — | — | ✓ | ✓ | ✓ |
| Heavy Metals | — | — | ✓ | ✓ | ✓ | ✓ |
| Endotoxin | — | — | ✓ | ✓ | ✓ | ✓ |
| Sterility | — | — | — | ✓ | ✓ | ✓ |
| Residual Solvents | — | — | — | ✓ | ✓ | ✓ |
| Moisture Content | — | — | — | ✓ | ✓ | ✓ |
| Amino Acid Analysis | — | — | — | — | ✓ | ✓ |
| Vials required | 1 | 1 | 3 | 7 | 7 | 21 |
| Samples tested | 1 | 1 | 1 | 1 | 1 | 3 |
Not sure which panel is right for you?
Email us and we'll recommend the right panel based on your compound and use case.
Email info@checkpeptide.com →