At Peptideware, we believe that transparency is the foundation of trustworthy research. Every peptide we supply undergoes rigorous analytical testing before it reaches your laboratory. This page serves as a central repository for our published Certificates of Analysis (COAs), giving researchers direct access to the purity and identity verification data behind our products. We maintain these records because we understand that reproducible research demands verified reagents—and verified reagents demand documented evidence. Our commitment to open testing data reflects the same standards we would expect as researchers ourselves. All products listed here are supplied strictly for research use only (RUO) and are not intended for human consumption, therapeutic application, or diagnostic use.
How We Verify Every Batch
Every batch of peptide that leaves our facility has been subjected to two primary analytical methods, each serving a distinct purpose in quality verification:
High-Performance Liquid Chromatography (HPLC)
HPLC is the industry-standard technique for determining peptide purity. By separating the components of a sample based on their chemical properties, HPLC produces a chromatogram that reveals the proportion of target peptide versus impurities such as truncated sequences, deletion peptides, or residual protecting groups. Our COAs report purity as a percentage, with the vast majority of our catalog testing at ≥98% purity. For researchers unfamiliar with interpreting HPLC data, we recommend reviewing this PubMed overview of HPLC in peptide analysis.
Mass Spectrometry (MS)
While HPLC tells us how pure a sample is, mass spectrometry confirms what the sample is. MS measures the molecular weight of the peptide, producing a mass-to-charge ratio (m/z) spectrum that must match the theoretical molecular weight of the target compound. This dual verification—purity via HPLC plus identity via MS—ensures that researchers receive exactly the compound specified on the label, at the stated purity level. Together, these methods form the analytical backbone of our quality assurance program.
For a deeper explanation of why analytical purity matters in peptide research, visit our guide: Peptide Purity: Why It Matters.
What Is a Certificate of Analysis (COA)?
A Certificate of Analysis (COA) is an official document issued by a testing laboratory that reports the analytical results for a specific batch of product. It is the primary quality document in the research peptide industry.
When evaluating a COA, researchers should look for: batch/lot number, test date, HPLC purity percentage, observed molecular weight (compared to theoretical), appearance and solubility data, and the identity of the testing laboratory.
A legitimate COA should be traceable to a specific lot number and testing date. If a supplier cannot provide batch-specific documentation, that is a significant red flag. We encourage all researchers to request and verify COAs before incorporating any peptide into their protocols. For more context on what third-party testing involves and why it matters, see our page on Third-Party Testing Explained.
Our Published COAs
Below you will find the current COAs for our most popular research peptides. Each document includes HPLC purity data and mass spectrometry confirmation. Click on any product name to view the full product listing, or review the COA image directly.
BPC-157
Body Protection Compound-157 is one of the most widely studied synthetic peptides in research literature. This COA confirms purity via HPLC and molecular identity via mass spectrometry. View product →
TB-500
Thymosin Beta-4 fragment (TB-500) is a synthetic peptide corresponding to the active region of thymosin beta-4. This COA documents both purity and molecular weight verification. View product →
CJC-1295 With DAC
CJC-1295 with DAC (Drug Affinity Complex) is a modified growth hormone-releasing hormone analog studied in endocrine research. HPLC and MS results are documented in the attached COA. View product →
Ipamorelin
Ipamorelin is a selective growth hormone secretagogue peptide used extensively in neuroendocrine research. This COA verifies compound identity and chromatographic purity. View product →
MOTS-c
MOTS-c is a mitochondrial-derived peptide that has attracted significant research interest in metabolic studies. Purity and molecular weight confirmation are provided in the COA above. View product →
Semaglutide
Semaglutide is a GLP-1 receptor agonist peptide widely referenced in metabolic and endocrine research literature. This COA provides HPLC purity data and mass spectrometry identity confirmation. View product →
Our Testing Partners
All analytical testing is performed by independent, third-party laboratories that are not affiliated with Peptideware. We use this approach deliberately: independent testing eliminates conflicts of interest and ensures that the data on our COAs reflects unbiased, objective analysis. Our testing partners maintain ISO-standard laboratory environments and employ validated analytical methods consistent with current pharmacopeial guidelines for peptide characterization.
We periodically rotate and audit our testing partners to maintain the highest level of analytical confidence. If you have questions about our testing methodology or would like to verify a specific COA, we welcome your inquiry.
To learn more about our commitment to quality and why researchers choose Peptideware, visit Why Peptideware.
Request a COA
Need a COA for a specific batch or product not listed above?
We maintain COA records for every batch we produce. If you require documentation for a specific lot number, or if you need a COA for a product not currently displayed on this page, please contact our team directly.
Email: support@peptideware.com
Please include the product name and lot/batch number (found on your product label) in your request. We typically respond within one business day.
We believe that making COAs readily available is a baseline expectation—not a differentiator. Researchers should never have to wonder about the identity or purity of the compounds in their protocols. If a supplier makes it difficult to obtain analytical documentation, consider that a warning sign.
Research Use Only (RUO) Disclaimer
All products referenced on this page are intended for laboratory research use only. They are not intended for human or veterinary use, food, cosmetic, household, or agricultural applications. These products are not drugs, are not approved by the FDA, and may not be used for diagnostic or therapeutic purposes. By purchasing or reviewing these materials, you confirm that you are a qualified researcher operating within applicable local, state, and federal regulations. Peptideware makes no claims regarding the safety, efficacy, or suitability of these products for any purpose beyond in vitro and in vivo research applications.