HPLC purity
High-performance liquid chromatography measures purity against a 99%+ standard for every batch.
Quality & Testing
Testing & Purity
Vantage Labs products are held to a 99%+ purity standard and independently verified by a third-party analytical lab. We don’t ask you to take purity on trust — we document it.
How We Verify
Independent, third-party tested.
Testing is performed by Janoshik Analytical, an independent lab widely used across peptide research for purity and identity analysis.
Mass-spec identity
Mass spectrometry confirms the compound’s identity and molecular weight match the label.
COA on request
Every product is backed by a certificate of analysis, available on request for any lot.
What A COA Shows
Documentation you can check.
A certificate of analysis records the lot, the measured purity, the identity confirmation, and the testing method — the same details a research buyer needs to qualify a material before use.
Request a COA for any product and we’ll provide the most recent lot documentation.
Certificate of AnalysisVerified
ProductRetatrutide 10MG
LotVL-RETA-2406
Purity (HPLC)99.2%
Identity (MS)Confirmed
Tested byJanoshik Analytical
Sample shown for illustration. Request the full COA for any lot.
Advance Peptide Research
99%+ purity, documented.
Shop the catalog or request a certificate of analysis for any lot.