BioNorth Labs

Peptides

GLP-1 blind test (semaglutide, tirzepatide, retatrutide)

One test that identifies which GLP-1 agonist is present and how much of it.

Full details are in the parameters section below.

A blind screen across the common GLP-1 agonists. You do not have to declare which compound the sample is meant to be: we establish which of the three is present, and quantify it.

The most requested test in this category, because substitution between these three is the most common failure we see.

What you send in

One unopened vial, or min. 2 mg powder

What the report contains

  • Compound identified
  • Measured mass in mg
  • Deviation from declared content
  • Chromatogram
ParameterValue
Testing methodHPLC-UV + LC-MS
Result formatCompound identified
Minimum sample amountOne unopened vial, or min. 2 mg powder
Average turnaround time3-5 business days
Compounds screenedSemaglutide, tirzepatide, retatrutide
Detection limitUnder 1/20th of the usual dose per vial

€75.00

Additional services
  • What is this?

    Your sample moves to the front of the queue. Report within 48 hours of arrival at the lab.

  • What is this?

    We keep the remaining sample for six months, so a retest or second analysis stays possible.

Total€75.00

After checkout you receive a test ID and the shipping instructions. The turnaround time starts once your sample arrives at the lab.

Contact us

Not sure which analysis you need?

Tell us what the sample is and what you want to know about it, and we will point you at the right test — or tell you that no test we run will answer your question.

Response time
Within one business day, in English.
Shipping address
You receive the address to ship your sample to by email once you have placed an order.

Before you write

Two things make the answer a lot more useful:

  • What the sample is meant to be, and what the label declares.
  • The form it is in — oil solution, powder, tablets, lyophilised vial.

We cannot advise on dosing or human use, and we do not answer questions about where to obtain a compound.