Links to Peptara Labs are affiliate links, and we may earn a commission when you buy through them.
Which document comes from which lane?
The two lanes produce different paperwork. The simplest way to tell them apart: what does each one give the public without an account?
The research supply lane can publish a per batch lab record, tied to one batch and readable before you order. The prescription lane gives the public no such document, because it wasn't built to. Neither statement crosses into the other lane. Each only describes what its own lane is built to produce.
What's in a per batch lab record?
On the published certificate record we can cite, a per batch record shows:
- identity by HPLC retention-time matching and by LC-MS
- purity by HPLC against a release criterion of not less than 95.0 percent
- net peptide content
- sterility and bacterial endotoxin
- a heavy metals panel for arsenic, cadmium, chromium, mercury and lead
- a fentanyl immunoassay screen
The supplier walks through one certificate line by line on the supplier's certificate walkthrough. Measured purity across that published catalog falls between 98.6 and 99.6 percent.
How do you trace a shipped vial to its record?
On the record we cite, vials ship without a printed label on purpose. So there's no lot code on the vial. To tie it back to its certificate, you message support with your order number.
That's a fact about how this lane documents a batch, not a point for or against it. The prescription lane has no equivalent, because different rules set its packaging.
What does a real record look like?
Here's one published record, to show the shape: COA-2026-8642, a four-page Titreon Analytical panel for BPC-157 batch BPC-260408-A, tested by a third-party lab whose quality system is aligned to ISO/IEC 17025:2017, not itself accredited.
That's a different compound. We show it only as the shape a per batch record takes, not as evidence about tirzepatide. More on one measurement, two signatures, and the lane that issues this record.
What do we cover?
We report two things and no third: which lane a route belongs to, and what paperwork it can produce. Material in the research supply lane is lab stock, not a licensed medicine. The supplier we cite says on its own pages that it sells research-grade material, not a medicine any regulator has signed off.
We don't assess any person or call anything safe or effective. Questions about a person belong with a licensed clinician.