Named under S2 among growth hormone releasing factors, and how the class is detected

Published 26 October 2026 · REVIVE LAB UAE Research Desk · 5 min read
Class S2 of the WADA prohibited list includes growth hormone, its fragments and analogues, and its releasing factors: growth hormone-releasing hormone and its analogues — tesamorelin, sermorelin and CJC-1295 are named — growth hormone secretagogues such as ipamorelin and the ghrelin mimetics, and growth hormone-releasing peptides. All are prohibited at all times. Tesamorelin, having a sequence and mass that do not occur naturally because of the hexenoyl group, is detected directly by mass spectrometry of the intact peptide or its fragments in urine or plasma. The downstream biomarkers IGF-1 and P-III-NP, which rise with any agent that increases growth hormone, provide a second, indirect route.

The class

The list treats anything that raises growth hormone as equivalent to growth hormone for doping purposes, whatever the mechanism. Releasing factors, secretagogues and the hormone itself therefore sit together. The analogues are named so that modification does not evade the rule. Approved medicines in the class, including tesamorelin, require a therapeutic use exemption for an athlete to use them.

The IGF-1 analogues and thymosin beta-4 derivatives appear in the same class.

Detection

Direct detection relies on the non-natural structure: the hexenoyl-tyrosine amino terminus gives a tryptic fragment that cannot come from the body. The peptide and its metabolites are extracted from urine by immunoaffinity or solid phase and analysed by liquid chromatography with high-resolution mass spectrometry. The window is a day or two. Indirect detection by the IGF-1 and collagen marker score extends the window and is shared with growth hormone itself.

Methods for the whole class were developed through the 2010s as the compounds appeared in sport.

Why it is here

Because the regulatory status and the analytical chemistry of detection are part of what is established about the molecule. It states the listing; it is not advice.

Tesamorelin is supplied by REVIVE LAB UAE for laboratory research use only, with identity by mass spectrometry and purity by HPLC for the batch. It is not for human or veterinary use, and no dosing, administration or protocol guidance is provided.

What it costs

FormatStrengthPriceAvailability
Tesamorelin 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

The class?

The list treats anything that raises growth hormone as equivalent to growth hormone for doping purposes, whatever the mechanism. Releasing factors, secretagogues and the hormone itself therefore sit together. The analogues are named so that modification does not evade the rule. Approved medicines in the class, including tesamorelin, require a therapeutic use exemption for an athlete to use them.

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.

Tesamorelin 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.