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.
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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
0 records
Epithalon · 10 mg
0 records
Tesamorelin · 5 mg
1 record
Tesamorelin · 10 mg
0 records
Sermorelin · 5 mg
0 records
BPC-157 · 5 mg
0 records
BPC-157 · 10 mg
0 records
TB-500 · 10 mg
0 records
Glutathione · 1500 mg
0 records
PT-141 · 10 mg
0 records
GHK-Cu · 50 mg
1 record
Retatrutide · 10 mg
0 records
Kisspeptin · 10 mg
0 records
Research records
9 results
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.