Research Summary2026
Understanding peptide identity testing
How third-party laboratories confirm the identity of a peptide reference material using mass spectrometry and chromatographic methods.
RESEARCH LIBRARY
Scientific references and research documentation
Explore scientific publications, structured research records, laboratory documentation, product references, analytical methods, and lot-specific Certificates of Analysis.
Research Use Only. Library content is provided for laboratory, scientific, and educational research purposes. It does not provide medical, diagnostic, therapeutic, prescribing, dosage, administration, or human-use guidance. Read Research Disclaimer.
Featured research
Research Summary2026
How analytical purity is reported
How area-percent purity values on a COA are generated and what they can — and cannot — tell a researcher.
Educational Reference2026
Why lot-level traceability matters
How lot numbers, batch identifiers, and accession numbers connect a specific reference material to its analytical record.
Research by product
NAD+ · 500 mg
1 record
MOTS-c · 10 mg
0 records
MOTS-c · 20 mg
1 record
Epithalon · 10 mg
1 record
Tesamorelin · 5 mg
1 record
Tesamorelin · 10 mg
1 record
Sermorelin · 5 mg
1 record
BPC-157 · 5 mg
1 record
BPC-157 · 10 mg
1 record
TB-500 · 10 mg
1 record
Glutathione · 1500 mg
1 record
PT-141 · 10 mg
1 record
GHK-Cu · 50 mg
2 records
Retatrutide · 10 mg
1 record
Kisspeptin · 10 mg
1 record
Retatrutide · 5 mg
1 record
Retatrutide · 15 mg
1 record
SS-31 · 10 mg
0 records
CJC-1295 + IPA (Without DAC) · 5 mg
0 records
CJC-1295 (With DAC) · 5 mg
0 records
Research records
23 results
Public COA2026
BPC-157 5 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot 260601. Identity Confirmed. Reported purity 99.85%.
- Journal
- Freedom Diagnostics
- Accession
- 2608280465
Public COA2026
BPC-157 10 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot 260504. Identity Confirmed. Reported purity 99.72%.
- Journal
- Freedom Diagnostics
- Accession
- 2608280464
Public COA2026
Epithalon 10 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot 260711. Identity Confirmed. Reported purity 99.95%.
- Journal
- Freedom Diagnostics
- Accession
- 2608280474
Public COA2026
Glutathione 1500 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot GLUT2026. Identity Confirmed. Reported purity 99.94%.
- Journal
- Freedom Diagnostics
- Accession
- 2608280470
Public COA2026
Kisspeptin-10 10 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot 260715. Identity Confirmed. Reported purity 99.86%.
- Journal
- Freedom Diagnostics
- Accession
- 2608280476
Public COA2026
MOTS-c 20 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot 26525. Identity Confirmed. Reported purity 99.73%.
- Journal
- Freedom Diagnostics
- Accession
- 2608280463
Public COA2026
Retatrutide 5 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot RT1031. Identity Confirmed. Reported purity 99.99%.
- Journal
- Freedom Diagnostics
- Accession
- 2608280468
Public COA2026
Retatrutide 10 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot RT1032. Identity Confirmed. Reported purity 99.91%.
- Journal
- Freedom Diagnostics
- Accession
- 2608280467
Public COA2026
Retatrutide 15 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot RT1033. Identity Confirmed. Reported purity 99.99%.
- Journal
- Freedom Diagnostics
- Accession
- 2608280469
Public COA2026
Sermorelin 5 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot SER525. Identity Confirmed. Reported purity 99.12%.
- Journal
- Freedom Diagnostics
- Accession
- 2608280471
Public COA2026
TB-500 10 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot 260428. Identity Confirmed. Reported purity 99.84%.
- Journal
- Freedom Diagnostics
- Accession
- 2608280466
Public COA2026
Tesamorelin 10 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot 260508. Identity Confirmed. Reported purity 99.79%.
- Journal
- Freedom Diagnostics
- Accession
- 2608280461
Public COA2026
PT-141 10 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot PT1025. Identity Confirmed. Reported purity 99.92%.
- Journal
- Freedom Diagnostics
- Accession
- 2608280472
Public COA2026
GHK-Cu 50 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot 260503. Identity Not tested on this certificate. Reported purity Not tested on this certificate.
- Journal
- Freedom Diagnostics
- Accession
- 2608280475
Educational Reference2026
How to read scientific product documentation
A structured checklist for reading a peptide reference material's product page and its associated COA.
Analytical Method2026
HPLC: high-performance liquid chromatography
Educational overview of HPLC as used for peak separation and purity measurement in peptide reference materials.
Analytical Method2026
LC-MS: liquid chromatography–mass spectrometry
A high-level educational description of LC-MS as it is used to confirm the identity of a peptide reference material.
Educational Reference2026
Why lot-level traceability matters
How lot numbers, batch identifiers, and accession numbers connect a specific reference material to its analytical record.
Research Summary2026
How analytical purity is reported
How area-percent purity values on a COA are generated and what they can — and cannot — tell a researcher.
Research Summary2026
Understanding peptide identity testing
How third-party laboratories confirm the identity of a peptide reference material using mass spectrometry and chromatographic methods.
Public COA2026
Tesamorelin 5 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot 260527. Identity Confirmed. Reported purity 99.90%.
- Journal
- Freedom Diagnostics
- Accession
- 2606190368
Public COA2026
NAD+ 500 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot 260503. Identity Confirmed. Reported purity 99.92%.
- Journal
- Freedom Diagnostics
- Accession
- 2606190366
Public COA2026
GHK-Cu 50 mg — Certificate of Analysis
Freedom Diagnostics analytical record for lot 260503. Identity Confirmed. Reported purity 99.52%.
- Journal
- Freedom Diagnostics
- Accession
- 2606190369
RUO
Research information, not medical guidance
The Research Library provides scientific references, laboratory documentation, and educational research information. It does not provide medical advice, diagnosis, treatment recommendations, prescribing information, dosage guidance, administration instructions, or instructions for human use.
Explore verified documentation
Review scientific references, product-specific research materials, and lot-level COA records through the Groppi American Peptides research platform.
