Why the three potencies were made unequal on purpose

Published 24 October 2026 · REVIVE LAB UAE Research Desk · 5 min read
In the receptor assays reported by Coskun and colleagues, retatrutide showed higher relative potency at the GIP and glucagon receptors and lower relative potency at the GLP-1 receptor. This imbalance was designed in, and it means the molecule's profile is a property of this specific ratio rather than of triple agonism in general.

How potency is measured

Receptor potency is determined in cells expressing one receptor type, by measuring the concentration of compound needed to produce a given fraction of maximal signalling — commonly cyclic AMP production for this receptor family. Comparing that against the native hormone gives relative potency.

Doing this separately for each of three receptors is what allows a ratio to be stated at all.

The ratio reported

The discovery paper reports retatrutide as a full agonist at all three receptors with GLP-1 receptor potency reduced relative to native GLP-1, while GIP and glucagon receptor potencies were comparatively higher. The authors describe the GLP-1 attenuation as deliberate.

The exact figures are in the paper and depend on the assay system used, which is why a secondary summary should point at the source rather than restate numbers.

Why this makes the compound specific

A different peptide engaging the same three receptors at a different ratio would be a different pharmacology. Results from one triple agonist do not describe another, and class-level statements about triple agonists are correspondingly weak.

For a researcher, the ratio is also what a receptor assay on a supplied batch would be checked against, were one to be run.

Supply

Retatrutide is supplied by REVIVE LAB UAE as an investigational research material for laboratory use only, with identity by mass spectrometry and purity by HPLC for the batch. It is not approved for any use anywhere, and no dosing, administration or protocol guidance is provided.

What it costs

FormatStrengthPriceAvailability
Retatrutide Pack20 mgAED 1010In stock

Delivery is AED 40 flat and free on orders over AED 700. Payment is cash on delivery anywhere in the UAE, or USDT (TRC20) in advance, which takes 5% off the order total.

Frequently asked

How potency is measured?

Receptor potency is determined in cells expressing one receptor type, by measuring the concentration of compound needed to produce a given fraction of maximal signalling — commonly cyclic AMP production for this receptor family. Comparing that against the native hormone gives relative potency.

Does REVIVE LAB UAE provide dosing guidance?

No. REVIVE LAB UAE supplies research materials and provides no dosing, administration or protocol guidance of any kind. Every product is sold for laboratory research use only and is not for human or veterinary consumption.

How fast is delivery in the UAE?

Stock is held in Dubai. An order confirmed before 4 PM Dubai time is dispatched the same working day, reaching Dubai and Abu Dhabi the same day and the remaining emirates within 24 hours. Delivery is AED 40 flat and free over AED 700.

Retatrutide Pack — in stock, dispatched from Dubai
HPLC-verified, lot certificate on every carton, 24-hour delivery nationwide. Browse the catalogue → All peptides UAE

Related reading

Supplied for laboratory research use only. Not for human or veterinary consumption. REVIVE LAB UAE provides no dosing, administration or protocol guidance.