Lab Reports & Third-Party Testing
Every Based Peptides product is independently tested by a third-party analytical laboratory. Below are the most recent batch results for each peptide in our catalog. To request a batch-specific Certificate of Analysis (COA) for a peptide you've ordered, email us with your order number.
Current Batch Results
How We Test Every Batch
Quality control isn't optional in research peptides — it's the foundation of reproducible science. Here's exactly what every batch goes through before it reaches your lab.
- Reverse-Phase HPLC. High-performance liquid chromatography quantifies the purity of each batch by measuring the area under the curve of the main peak versus all impurities. We target 98%+ purity minimum, with most batches exceeding 99%.
- Mass Spectrometry. ESI-MS confirms the molecular weight of the peptide matches the theoretical calculation from the amino acid sequence. This rules out wrong sequences, deletion variants, and oxidized forms.
- Visual Inspection. Every vial is inspected for proper appearance (uniform white to off-white lyophilized powder), packaging integrity, and label accuracy.
- Documentation. A batch-specific COA is generated containing chromatogram, mass spec data, lot number, manufacture date, test date, and analyst identification.
How to Read a COA
Not all COAs are created equal. A legitimate research peptide COA should contain:
- Peptide name, sequence, and molecular formula
- Batch or lot number unique to the production run
- Manufacture date and test date
- HPLC chromatogram with the main peak clearly identified
- HPLC purity percentage
- Mass spectrometry data showing observed vs theoretical mass
- Analyst signature and laboratory name
- Water content (Karl Fischer titration)
For a complete deep-dive on reading and interpreting peptide COAs, see our blog post: Understanding a Peptide Certificate of Analysis →
Request a Specific COA
If you need the COA for a specific batch you've purchased, email us at info@basedpeptides.co with your order number and the lot number printed on the vial. We respond within one business day with the corresponding analytical documentation.
Researchers preparing manuscripts for publication or submitting to institutional review boards can request additional documentation including extended stability data and synthesis methodology where available.
Why Third-Party Testing Matters
In-house quality control has an inherent conflict of interest: the manufacturer has a commercial stake in the result. Third-party testing removes that conflict. An independent analytical laboratory has no commercial relationship with the peptide manufacturer and applies standardized methods uniformly across all samples.
This is the gold standard for research-grade peptides. It's also why Based Peptides is happy to provide COAs on every batch — and why our COAs come from accredited third-party labs, not our own quality team.
Research Use Only: All Based Peptides products are intended exclusively for in vitro laboratory research by qualified researchers. They are not drugs, supplements, or cosmetics, and are not intended for human or veterinary use.