Lab Results
Certificate of Analysis library
Lot-level analytical documentation for Nexa Labs reference materials. Tap any product to read the issuing laboratory’s certificate for that lot. Identity and purity are determined by HPLC with mass-spectrometric confirmation, and every figure shown here is transcribed from the certificate itself.
- 11 published certificates
- 4 independent laboratories
- 99%+ purity, every lot
- HPLC & mass spectrometry
Analytical detail
- Purity
- 99.17% (spec ≥ 95.0%)
- Identity
- Confirmed (HPLC-RTM)
- Net peptide
- 10.38 mg
- Method
- Purity, identity & quantitation by HPLC
- Laboratory
- ILS Laboratories, San Diego CA (ISO/IEC 17025)
- Analysis date
- 13 Aug 2026
- Reference
- COA-2026-WCGAUD
- Notes
- Fentanyl screen (immunoassay, 50 ng/mL cutoff): not detected
Analytical detail
- Purity
- 99.20%
- Identity
- Confirmed (LC-MS)
- Net peptide
- 10.19 mg
- Method
- HPLC with UV detection coupled to mass spectrometry
- Laboratory
- Freedom Diagnostics
- Analysis date
- 6 Jul 2026
- Reference
- Accession 2607030268
- Notes
- Appearance: white lyophilized powder
Analytical detail
- Purity
- 99.01%
- Identity
- Confirmed (LC-MS)
- Net peptide
- 0.89 mg
- Method
- HPLC with UV detection coupled to mass spectrometry
- Laboratory
- Freedom Diagnostics
- Analysis date
- 6 Jul 2026
- Reference
- Accession 2607030269
- Notes
- Appearance: white lyophilized powder
Analytical detail
- Purity
- 99.82%
- Identity
- Confirmed (LC-MS)
- Net peptide
- 11.47 mg
- Method
- HPLC with UV detection coupled to mass spectrometry
- Laboratory
- Freedom Diagnostics
- Analysis date
- 6 Jul 2026
- Reference
- Accession 2607030270
- Notes
- Appearance: white lyophilized powder
Analytical detail
- Purity
- >99.9% (spec LOQ 0.5%)
- Identity
- Confirmed (HPLC-UV/MS)
- Net peptide
- 52.6 mg
- Method
- Chromatographic purity and quantitation by HPLC-UV/MS
- Laboratory
- Krause Analytical, Austin TX (via Finnrick Analytics)
- Analysis date
- 19 Feb 2026
- Reference
- Certificate sj65svh, lab 201261
- Notes
- GHK-Cu 105.2% of label; CAS 49557-75-7
Analytical detail
- Purity
- >99.9% (spec LOQ 0.5%)
- Identity
- Confirmed (HPLC-UV/MS)
- Net peptide
- 114 mg
- Method
- Chromatographic purity and quantitation by HPLC-UV/MS
- Laboratory
- Krause Analytical, Austin TX (via Finnrick Analytics)
- Analysis date
- 19 Feb 2026
- Reference
- Certificate 2rx3crq, lab 201268
- Notes
- GHK-Cu 114.2% of label; CAS 49557-75-7
Analytical detail
- Purity
- 99.80%
- Identity
- Confirmed (HPLC-UV-MS)
- Method
- HPLC-UV-MS, area normalisation over 9 detected peaks
- Laboratory
- MZ Biolabs, Tucson AZ
- Analysis date
- 25 Nov 2025
- Reference
- Lot 2025-11-10
- Notes
- Component split: ipamorelin 90.77%, CJC-1295 no DAC 9.03%
Analytical detail
- Purity
- 99.98%
- Identity
- Confirmed (HPLC-UV-MS)
- Method
- HPLC-UV-MS, area normalisation over 4 detected peaks
- Laboratory
- MZ Biolabs, Tucson AZ
- Analysis date
- 25 Nov 2025
- Reference
- Lot 2025-11-10
- Notes
- Component split: GHK-Cu 71.58%, BPC-157 18.81%, thymosin beta-4 9.59%
Analytical detail
- Purity
- 99.94%
- Identity
- Confirmed (HPLC-UV-MS)
- Method
- HPLC-UV-MS, area normalisation over 2 detected peaks
- Laboratory
- MZ Biolabs, Tucson AZ
- Analysis date
- 25 Nov 2025
- Reference
- Lot 2025-11-10
- Notes
- Sequence H-Met-Glu-His-Phe-Pro-Gly-Pro-OH; PubChem CID 122178
Analytical detail
- Purity
- 99.88%
- Identity
- Confirmed (HPLC-UV-MS)
- Method
- HPLC-UV-MS, area normalisation over 5 detected peaks
- Laboratory
- MZ Biolabs, Tucson AZ
- Analysis date
- 25 Nov 2025
- Reference
- Lot 2025-11-10
- Notes
- Component split: BPC-157 63.39%, thymosin beta-4 36.49%
Analytical detail
- Purity
- 99.93% (spec LOQ 0.5%)
- Identity
- Confirmed (HPLC-UV/MS)
- Net peptide
- 9.55 mg
- Method
- Chromatographic purity and total peptide mass by HPLC-UV/MS
- Laboratory
- Krause Analytical, Austin TX (via Finnrick Analytics)
- Analysis date
- 17 Nov 2025
- Reference
- Certificate extwr3v
- Notes
- Total peptide mass 95.5% of label
Certificates relate only to the sample submitted for testing. Lot documentation for catalogue items not listed above is available on request. Contact us with the item and lot. All materials are supplied as analytical reference standards for in vitro research, analytical method development and identity verification only. They are not for human or animal consumption, therapeutic, clinical, diagnostic or dietary use.