Because a single growth hormone sample is uninformative, deficiency is assessed by provoking a pulse

Published 26 October 2026 · REVIVE LAB UAE Research Desk · 5 min read
Because growth hormone is pulsatile and often undetectable between pulses, deficiency is assessed by stimulating the pituitary and measuring the peak response. The insulin tolerance test induces hypoglycaemia, a strong physiological stimulus; arginine and glucagon act through other routes; macimorelin, an oral ghrelin receptor agonist approved in 2017, provokes release directly. A peak below a defined cut-off, which depends on the test and the assay, is taken as deficient. The tests measure pituitary reserve, not the hormone level at any moment.

Why provoke

A healthy person and a deficient person can have the same near-zero growth hormone between pulses. What distinguishes them is the capacity to release a pulse when stimulated. The tests supply a stimulus and read the response, which is why the peak and not a baseline is reported.

IGF-1 is measured alongside as the integrated marker, but it can be normal in some deficient adults, so the stimulation test remains the reference.

The tests

Insulin-induced hypoglycaemia is the oldest and most potent stimulus and is the reference against which others are judged, with safety constraints that limit its use. Arginine infusion acts partly by suppressing somatostatin. Glucagon acts by a less defined route and is widely used where insulin is unsuitable. Macimorelin gives an oral alternative with a single receptor mechanism. Cut-offs differ by test, by body mass index and by assay, which is a known difficulty in the field.

In children, two failed tests are generally required because a single test has a high false-positive rate.

Why this page exists

To explain how the field establishes deficiency, since deficiency defines the approved indication for the recombinant hormone. It describes diagnostic practice as reported; it is not advice and it does not describe any use of the pack.

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

What it costs

FormatStrengthPriceAvailability
HGH Somatropin Pack24 mg (72 IU)AED 850In 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

Why provoke?

A healthy person and a deficient person can have the same near-zero growth hormone between pulses. What distinguishes them is the capacity to release a pulse when stimulated. The tests supply a stimulus and read the response, which is why the peak and not a baseline is reported.

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.

HGH Somatropin 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.