Vendor trust rankings
We grade every vendor on evidence you can verify: independent third-party lab results and batch-specific certificates of analysis. Vendors can't buy a better grade — rankings come from data, not deals.
Each vendor gets a PeptidePub Testing Score — a 7-point checklist scored from their published certificates of analysis: net content, purity, identification, heavy metals, sterility, endotoxins, and contaminant screening. More checks verified = higher score.
Viper Peptides
Raw peptides- batch-specific COAs, downloadable
- Tested at Freedom Diagnostics
3/7PeptidePub Testing Score
- ✓Net Content
- ✓Purity
- ✓Identification
- ✗Heavy Metals
- ✗Sterility
- ✗Endotoxins
- ✗Fentanyl / Contaminant
Valor Peptides
Raw peptides- batch-specific COAs, downloadable
- Tested at AccumarkLabs
5/7PeptidePub Testing Score
- ✓Net Content
- ✓Purity
- ✓Identification
- ✗Heavy Metals
- ✓Sterility
- ✓Endotoxins
- ✗Fentanyl / Contaminant
Peptide Society
Raw peptidesShips from San Diego, CA
- batch-specific COAs, downloadable
- Tested at IS-Lab (PJLA-accredited)
4/7PeptidePub Testing Score
- ✓Net Content
- ✓Purity
- ✓Identification
- ✓Heavy Metals
- ✗Sterility
- ✗Endotoxins
- ✗Fentanyl / Contaminant
Ascension Peptides
Raw peptidesShips from USA
- 77 batch-specific COAs, downloadable
- Tested at Kovera Labs
6/7PeptidePub Testing Score
- ✓Net Content
- ✓Purity
- ✓Identification
- ✓Heavy Metals
- ✓Sterility
- ✓Endotoxins
- ✗Fentanyl / Contaminant
Integrative Peptides
FormulatedShips from USA
- Manufacturer-claimed testing (no published COA)
Testing is manufacturer-claimed with no published COA, so we don't assign a score.
AMP (Ameano Peptides)
Raw peptides- batch-specific COAs, downloadable
- Tested at Janoshik
3/7PeptidePub Testing Score
- ✓Net Content
- ✓Purity
- ✓Identification
- ✗Heavy Metals
- ✗Sterility
- ✗Endotoxins
- ✗Fentanyl / Contaminant
Atomik Labz
Raw peptides- batch-specific COAs, downloadable
- Tested at Kovera Labs
6/7PeptidePub Testing Score
- ✓Net Content
- ✓Purity
- ✓Identification
- ✓Heavy Metals
- ✓Sterility
- ✓Endotoxins
- ✗Fentanyl / Contaminant
BioEdge Peptides
Raw peptides- batch-specific COAs, downloadable
- Tested at Janoshik
2/7PeptidePub Testing Score
- ✓Net Content
- ✗Purity
- ✓Identification
- ✗Heavy Metals
- ✗Sterility
- ✗Endotoxins
- ✗Fentanyl / Contaminant
EZ Peptides
Raw peptides- batch-specific COAs, downloadable
- Tested at Janoshik
3/7PeptidePub Testing Score
- ✓Net Content
- ✓Purity
- ✓Identification
- ✗Heavy Metals
- ✗Sterility
- ✗Endotoxins
- ✗Fentanyl / Contaminant
Glacier Aminos
Raw peptides- batch-specific COAs, downloadable
- Tested at Kovera Labs
6/7PeptidePub Testing Score
- ✓Net Content
- ✓Purity
- ✓Identification
- ✓Heavy Metals
- ✓Sterility
- ✓Endotoxins
- ✗Fentanyl / Contaminant
Improved Peptides
Raw peptides- batch-specific COAs, downloadable
- Tested at Freedom Diagnostics
3/7PeptidePub Testing Score
- ✓Net Content
- ✓Purity
- ✓Identification
- ✗Heavy Metals
- ✗Sterility
- ✗Endotoxins
- ✗Fentanyl / Contaminant
Level Up Peptides
Raw peptides- batch-specific COAs, downloadable
- Tested at Vanguard Laboratory
2/7PeptidePub Testing Score
- ✓Net Content
- ✓Purity
- ✗Identification
- ✗Heavy Metals
- ✗Sterility
- ✗Endotoxins
- ✗Fentanyl / Contaminant
Main Peptides
Raw peptides- batch-specific COAs, downloadable
- Tested at Chromate
3/7PeptidePub Testing Score
- ✓Net Content
- ✓Purity
- ✓Identification
- ✗Heavy Metals
- ✗Sterility
- ✗Endotoxins
- ✗Fentanyl / Contaminant
MD Innovative Peptides
Raw peptides- batch-specific COAs, downloadable
- Tested at Analytical Formulations
3/7PeptidePub Testing Score
- ✓Net Content
- ✗Purity
- ✗Identification
- ✓Heavy Metals
- ✓Sterility
- ✗Endotoxins
- ✗Fentanyl / Contaminant
Mile High Compounds
Raw peptides- batch-specific COAs, downloadable
- Tested at Kovera Labs
6/7PeptidePub Testing Score
- ✓Net Content
- ✓Purity
- ✓Identification
- ✓Heavy Metals
- ✓Sterility
- ✓Endotoxins
- ✗Fentanyl / Contaminant
Valkyrie Peptides
Raw peptides- batch-specific COAs, downloadable
- Tested at Horizon Analytical
3/7PeptidePub Testing Score
- ✓Net Content
- ✓Purity
- ✓Identification
- ✗Heavy Metals
- ✗Sterility
- ✗Endotoxins
- ✗Fentanyl / Contaminant
Aero Peptides
Raw peptides- Manufacturer-claimed testing (no published COA)
Testing is manufacturer-claimed with no published COA, so we don't assign a score.
World Wide Peptides
Raw peptides- batch-specific COAs, downloadable
- Tested at Kovera Labs
7/7PeptidePub Testing Score
- ✓Net Content
- ✓Purity
- ✓Identification
- ✓Heavy Metals
- ✓Sterility
- ✓Endotoxins
- ✓Fentanyl / Contaminant
Double R Labs
Raw peptides- batch-specific COAs, downloadable
- Tested at Kovera Labs
7/7PeptidePub Testing Score
- ✓Net Content
- ✓Purity
- ✓Identification
- ✓Heavy Metals
- ✓Sterility
- ✓Endotoxins
- ✓Fentanyl / Contaminant
Run a lab? Want to be listed?
We list vendors that can show independent third-party testing and verifiable COAs. Listing standards are the same for everyone.
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