Quality & testing
Research-grade peptides · traceable by batch · report ships with every order.
How we control quality
We use in-house analysis as the release standard. Every production batch is tested after purification, before it’s packaged for shipment.
Reverse-phase HPLC
Measures chromatographic purity against our release cutoff.
LC-MS
Confirms molecular weight and compound identity.
Batch-gated release
Only batches clearing both checks enter inventory and ship. Each batch has its own ID, matched to the report and the vial label.
What you get
Every shipment can include a Certificate of Analysis (COA) for that specific batch, typically covering:
- Product name and batch ID
- HPLC purity result
- LC-MS confirmation
- Appearance / content notes, where applicable
The report ships with your order, or can be requested by batch ID after you order.
About third-party testing
We don’t send every production batch to an outside lab by default. In-house HPLC + LC-MS is already our release gate — sending every batch out for external re-testing would add cost and lead time across the whole catalog without changing which batches actually ship.
If you want independent verification:
- Request it for a specific batch — cost and turnaround confirmed per request
- Or send a sample to your own lab after you receive it — we’ll give you the batch ID and in-house report to compare against
We don’t claim every batch is third-party tested or that every report is published — that’s not the standard we’re holding ourselves to here.
Common questions
Is every batch sent to a third-party lab?
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No. Every batch is tested and released on in-house HPLC and LC-MS. Independent third-party testing is an add-on, arranged per batch on request — not run automatically on every SKU.
Are test reports published on the website?
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No — the standard is to provide the report to the buyer by batch ID (with your order, or on request), not to publicly display every historical batch's report. See /batches for the public release history (HPLC purity, mass spec, stock status) of a few sample batches.
Is the report a generic template?
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No. Each report corresponds to a specific production batch. Check that the batch ID on your vial/label matches the COA you received.
What's the purity standard?
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Our standard research-grade target is HPLC ≥98–99%, per what's stated on the specific product page. The actual measured value on that batch's COA governs — not the marketing copy.
Can I send a sample for independent testing myself?
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Yes. Keep the original packaging and note the batch ID, and keep our in-house COA so you can compare it against your own lab's result.