Quality Control
Every batch is analyzed by independent third-party laboratories before its results are published. Testing covers identity, content, purity, heavy metals, sterility, endotoxins, and a targeted fentanyl screen, with each result tied to the exact batch you receive.
What we test for, and how.
Every method below is run by an independent laboratory, not performed in-house. Release limits and instrument details are published on this page as they become available for each analysis.
Purity
Reverse-phase HPLC quantifies the target compound against impurities and process residuals, referenced to a certified standard.
Content Verification
Acid hydrolysis followed by amino-acid quantification confirms mass and concentration match the labeled potency.
Identity Confirmation
Mass spectrometry confirms the exact molecular weight and flags any truncated or modified sequences.
Heavy Metals Screening
Inductively-coupled plasma mass spectrometry screens for lead, arsenic, cadmium, and mercury below USP <232> thresholds.
Sterility Testing
Membrane filtration into fluid thioglycollate and tryptic soy broth, incubated and inspected per USP <71>.
Endotoxin Testing
Limulus amebocyte lysate assay quantifies bacterial endotoxin for cell-culture compatibility.
Fentanyl Screen
Targeted LC-MS/MS screen confirms the absence of fentanyl and fentanyl analog contamination on every lot.
Batch Conformity Verification
A final third-party review confirms every assay result matches the lot's release specification and that the published COA is true to the vial.
From synthesis to shelf, every sample is tracked.
Each lot is assigned a unique identifier at the point of synthesis. That ID follows the material through purification, lyophilization, fill, and every test point.
Synthesis complete
Each batch is assigned a unique lot ID at the point of synthesis.
RP-HPLC purification
Reverse-phase HPLC purification and in-process testing check the compound before it moves forward.
Lyophilization
Batches are freeze-dried and prepared for final packaging.
Third-party release panel
An independent laboratory completes the full testing panel before a batch is cleared.
Fill & seal
Vials are filled and sealed under controlled conditions.
COA published
The batch's Certificate of Analysis is published and linked to its lot number.
See the results for yourself.
Every published Certificate of Analysis is tied to the batch it covers.
View Test ReportsCommon questions about our testing
Independent laboratories accredited to ISO/IEC 17025 run the identity, purity, and contamination assays. Our internal QC repeats HPLC on every lot as an additional release gate.
Before the lot is released to fulfillment. If a lot has no Certificate of Analysis on its product page, it cannot ship.
It is quarantined and destroyed. We never downgrade, re-sell, or sub-brand failed material.
Yes — every published COA links to the full HPLC trace and mass spectrum as downloadable PDFs, tied to the exact lot number.
Join Aqua Research Newsletter
