Understand the science
Growth hormone, IGF-1, and the distinction between diagnosed deficiency and general wellness claims.
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Somatropin · rDNA origin · 100 IU kitCELTROPE.
CELTROPE.
Growth hormone, made the way your body makes it.
Recombinant human growth hormone with the same 191-amino-acid sequence your pituitary produces, supplied as ten 10 IU vials. Learn how it works, who it is for, and how to verify a genuine kit.
0amino acids
0 × 10 IUmultidose vials
0security features
CELTROPEInteractive 3D carton loads in a WebGL-capable browser
Drag to rotate · open the carton to see the tray
Start with your question
Find the information you need.
Three guides, with clear explanations and links to the underlying sources.
Put safety first
Questions for a clinician, warning signs, and why instructions must match the exact medicine.
Read the safety guide →Check the packaging
What to document when a pack looks unusual, and why a visual match is not proof of authenticity.
Review the checks →Mechanism
How growth hormone works.
Two routes. Growth hormone acts directly on fat and some tissues, and indirectly through IGF-1, a second hormone it tells the liver to make. Most of what people notice comes from IGF-1.
Release
The hypothalamus signals the pituitary, which secretes growth hormone in short pulses. Injected somatropin enters the blood the same way.
Liver response
GH binds liver receptors and triggers IGF-1 production. IGF-1 circulates for many hours, far longer than GH itself.
Tissue effects
IGF-1 drives protein synthesis in muscle, collagen in skin and connective tissue, and bone formation. GH itself acts directly on fat cells.
Feedback
Rising IGF-1 tells the brain to ease off. This loop is why dosing is individual and checked with IGF-1 blood levels.
A clearer comparison
HGH, GLP-1s & GH-releasing peptides.
Compare somatropin with semaglutide, tirzepatide, retatrutide, CJC-1295, ipamorelin, tesamorelin, hexarelin, and sermorelin.
Different treatments. Different purposes.
Explore mechanisms, clinical evidence, recovery and aging research, and the questions patients should ask before treatment.
View the comparison guide →Look a little closer
Explore the details.
Every carton and every vial label carries layered security printing. Select a feature to turn the carton toward it and see how to check it.
Illustrated packaging views
Drag to rotate · scroll to turn the carton · tap a marker
The carton
Four checks on the carton.
Hologram, thermochromic diamond, spot UV varnish and a serialised verification code, as specified on the production packaging.
Carton surfaces · label placement · illustrated markings
A genuine kit passes every check. One failed check is enough to treat the kit as suspect: do not use it, note the lot number, and contact your supplier.
Read the packaging guide →The vialA closer look.
A closer look.
A different light.
The 45 × 18 mm label is printed on grade-III coloured-fibre anti-copy stock with an optical-variation diamond, colourless fluorescent ink and a hot-stamped foil band. Tilt it, then switch to UV.
- Optical-variation diamond. Shifts blue to red as you tilt the vial. Flat colour means a copy.
- Fluorescent red text. Under UV a hidden CELTROPE glows red beside the batch line. Invisible in daylight.
- Hot-stamped foil band. Metallic, catches light, slightly raised to the touch.
- Coloured-fibre paper. Random fibres embedded in the stock itself, visible under magnification.
Drag to rotate · on a phone, tilt the device
The product
CELTROPE 100 IU kit.
| Active ingredient | Somatropin (rDNA origin) |
| Presentation | 10 multidose vials × 10 IU, lyophilised powder |
| Route | Subcutaneous injection after reconstitution |
| Carton | 186 × 50 × 21 mm slide box, 8 security features |
| Storage | 2–8 °C, protect from light, do not freeze. Refrigerate after reconstitution. |
| Manufacturer | CELINK, a Bouwen company |
$499per 100 IU kit
CELTROPE is an injectable medication. Use it under the guidance of a medical professional, with dosing adjusted to the individual and monitored through IGF-1 blood levels. Reconstitution and administration instructions are included with each kit.
Context matters
A medical decision starts with a diagnosis.
Adult growth hormone deficiency requires specialist assessment. Treatment decisions depend on the individual’s diagnosis, expected benefit, and risks.
Understand the evidence →Source: Endocrine Society clinical guideline.
A useful next step
Bring better questions to your appointment.
Use the safety guide to prepare a discussion with your clinician. For quick explanations, browse the FAQs.
Looking for a specific answer?
Find answers about testing, expectations, storage, and packaging concerns.
Browse common questions →
