MOTS-C 40MG
GROWTH HORMONE AXIS RESEARCH
TESAMORELIN 20MG
Growth Hormone Axis Research, Research Peptide Pens
One pre-filled 20mg Tesamorelin research pen for laboratory studies of growth-hormone signalling.
£169.00Free UK tracked delivery
- Made fresh to order
- Batch documentation pending
- UK tracked delivery
- Order by 1pm on working days for same-day dispatch
- Results published when verified
Research Use Only
Tesamorelin 20mg is a synthetic analogue of growth hormone-releasing hormone (GHRH), supplied in one pre-filled research pen. It contains all 44 amino acids of human GHRH, with a trans-3-hexenoyl group added at the N-terminus. Every tesamorelin pen is prepared to order in the UK and sent by tracked delivery.
Read our tesamorelin research overview for its classification and history, or see CJC-1295 + ipamorelin, a blend that also acts on the growth hormone axis.
How tesamorelin is studied
Tesamorelin binds the GHRH receptor on pituitary cells and stimulates the release of growth hormone, which in turn raises IGF-1. Its N-terminal modification protects it from rapid breakdown by the enzyme DPP-4. Non-clinical pharmacology work characterised its activity in animals, and clinical research has examined visceral adipose tissue, liver fat and muscle composition.
5 key research areas
- GHRH receptor and the GH/IGF-1 axis. Studies measured growth hormone release and IGF-1 levels after GHRH receptor activation.
- Peptide stability. The trans-3-hexenoyl group was examined for its role in resisting DPP-4 breakdown compared with native GHRH.
- Visceral adipose tissue. Clinical research in people with HIV examined changes in visceral adipose tissue.
- Liver fat. A randomised trial examined liver fat in people with HIV and non-alcoholic fatty liver disease.
- Adipose tissue quality. Imaging studies examined adipose tissue density, a measure of fat quality, separately from fat quantity.
Selected published research
Peer-reviewed studies on tesamorelin, with PubMed IDs:
- Ferdinandi ES, et al. (2007). Non-clinical pharmacology and safety evaluation of TH9507, a human growth hormone-releasing factor analogue. Basic & Clinical Pharmacology & Toxicology. PMID 17214611
- Falutz J, et al. (2007). Metabolic effects of a growth hormone-releasing factor in patients with HIV. New England Journal of Medicine. PMID 18057338
- Stanley TL, et al. (2019). Effects of tesamorelin on non-alcoholic fatty liver disease in HIV: a randomised, double-blind, multicentre trial. Lancet HIV. PMID 31611038
- Lake JE, et al. (2021). Tesamorelin improves fat quality independent of changes in fat quantity. AIDS. PMID 33756511
These references describe laboratory, animal and clinical research on tesamorelin, studied elsewhere as an investigational compound. They are cited as scientific background only and do not make this research material suitable for human use.
What arrives
20mg pen
One pre-filled Apexion research pen
One pre-filled Apexion research pen
Single compound
Tesamorelin, synthetic GHRH analogue
Tesamorelin, synthetic GHRH analogue
Protected packaging
Discreet and tamper-evident
Discreet and tamper-evident
Batch traceability
Batch number on every pen; independent testing in progress
Batch number on every pen; independent testing in progress
Preparation and UK dispatch
- Made fresh to order after checkout
- Prepared and quality checked before dispatch
- Tracked Royal Mail delivery across the UK
- UK-based product and documentation support
Simple, secure checkout
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Independent testing is in progress; results will be published only when verified evidence is available.
Research use only. Tesamorelin is supplied for in-vitro laboratory research by qualified researchers. It is not a medicine, is not licensed by the MHRA, and is not intended for human or veterinary use, diagnosis or treatment.
| Content | 20 mg tesamorelin, one pre-filled research pen |
|---|---|
| Purity | Independent testing in progress; results published on verification |
| CAS | 218949-48-5 |
| Molecular formula | C221H366N72O67S |
| Molecular weight | ~5136 g/mol |
| Form | Pre-filled research pen |
| Origin | UK-stocked, tracked Royal Mail dispatch |
| Intended use | Laboratory research only. Not for human consumption. |
Every tesamorelin pen is made fresh after your order is placed, and each one is prepared and quality checked before dispatch. Independent third-party testing of tesamorelin is under way. The batch Certificate of Analysis will be published here, and linked to your pen's batch number, as soon as results are verified. Read how we test and verify every batch on our Quality & Batch Verification page.
| Documentation status | Independent testing in progress |
|---|---|
| Test method | HPLC (purity and identity) |
| Analysis | Independent third-party laboratory, plus in-house QC on every pen |
| Verification | Batch number on every pen; COA linked by QR once published |
Storage conditions
- Long-term: −20 °C in a temperature-controlled environment
- Short-term: keep cool and stable (2–8 °C) and away from direct light
- Keep the pen sealed when not in use
- Avoid repeated temperature changes (freeze–thaw cycles)
Handling guidance
- Check that the packaging and tamper seal are intact on arrival
- Handle as little as possible, using standard laboratory practice
- Record the batch number for traceability
- Follow any batch-specific guidance supplied with your order
What is tesamorelin?
Tesamorelin is a synthetic analogue of growth hormone-releasing hormone (GHRH). It contains the full 44-amino-acid GHRH sequence with an added N-terminal group that slows its breakdown. Apexion supplies it for laboratory research only.
What is the difference between tesamorelin and CJC-1295?
Both are GHRH analogues. Tesamorelin keeps the full 44-amino-acid GHRH sequence with an N-terminal modification. CJC-1295 (no DAC) is a shorter 29-amino-acid analogue with four amino-acid substitutions. We supply CJC-1295 as a blend with ipamorelin.
How much tesamorelin is in each pen?
Each pen contains 20 mg of tesamorelin in one pre-filled research pen. Every pen comes from a single batch and carries its batch number.
Is tesamorelin independently tested?
Every tesamorelin pen is made fresh after your order is placed, so each one is prepared and quality checked to order rather than taken from old stock. Independent third-party testing of tesamorelin is under way, and the batch Certificate of Analysis will be published as soon as the results are verified. Each pen carries a batch number, so its documentation can be traced.
Can tesamorelin be used in humans or animals?
No. Tesamorelin is not a medicine and is not licensed by the MHRA. It is supplied strictly for in-vitro laboratory research, and is not for human or veterinary use, diagnosis or treatment.
How should tesamorelin be stored?
Keep the pen sealed and store it at −20 °C for long-term storage, away from heat and direct light. Handle it as little as possible and follow any batch-specific guidance supplied with your order.
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