Research peptide
Ipamorelin
Selective growth-hormone secretagogue research compound supplied as a 5mg lyophilised vial.
Supplier documentation available on request. Independent reports are published where held — see current lab reports.
No reconstitution supplies needed. Bought separately for a standard vial, water, needles and wipes come to £14.
Are you sure you have these? Select them. A standard vial arrives as lyophilised powder. Bacteriostatic water, insulin needles and alcohol wipes are needed to prepare it in the laboratory. Nothing is added unless you tick it.
Add £75 more for free UK delivery · free from £100
Also available as: Ipamorelin Pen Vial (pre-filled kit) · Ipamorelin + CJC-1295 Combo Pen
Overview
Ipamorelin is a synthetic pentapeptide (Aib-His-D-2-Nal-D-Phe-Lys-NH2) and a selective growth-hormone secretagogue acting at the ghrelin/GHS receptor. It is supplied as a lyophilised powder for laboratory research.
It is studied in vitro and in preclinical models for growth-hormone-release dynamics and for its receptor selectivity relative to other secretagogues such as GHRP-2 and GHRP-6. It is supplied as a research reference material only and is not for human or animal consumption.
Ipamorelin in published research
Ipamorelin was first described by researchers at Novo Nordisk in 1998 as the first selective growth-hormone secretagogue. In the original pig and rat studies it stimulated growth-hormone release without the marked rises in ACTH and cortisol seen with earlier secretagogues such as GHRP-6 and GHRP-2. That selectivity is the main reason it is still used as a reference compound.
It acts at the growth-hormone secretagogue receptor (GHS-R1a), the same receptor as the hormone ghrelin. Research has looked at the pulsatile pattern of the growth-hormone release it produces, how it compares with other ghrelin-receptor agonists, and how it behaves alongside GHRH analogues that act on a separate receptor.
Ipamorelin and CJC-1295
Ipamorelin is often studied alongside CJC-1295 No DAC (Mod GRF 1-29). The two act on different receptors: Ipamorelin on the ghrelin receptor and CJC-1295 on the GHRH receptor, which is why they appear together in research on combined secretagogue signalling. Both are stocked here, and the Ipamorelin vs CJC-1295 guide below compares them in more detail.
Buying Ipamorelin in the UK
North Peptides UK holds Ipamorelin in stock in the UK and sends it by tracked delivery, so there is no import wait or customs hold. Each vial contains 5mg of lyophilised Ipamorelin at supplier-stated purity, kept frozen until it leaves us, and supplier documentation is available on request where held. If you would rather not reconstitute, the Ipamorelin Pen Vial holds the same peptide as a 5mg/3ml liquid.
Research guides
- Ipamorelin vs CJC-1295: Research Compounds ComparedCompound Comparison · 3 min read
Research areas
- Growth-hormone secretagogue (ghrelin/GHS receptor) signalling, studied in vitro
- Receptor selectivity relative to GHRP-2 and GHRP-6, characterised in research
- Pituitary growth-hormone pulse patterns in preclinical models
- Comparative studies alongside GHRH-analogue peptides
At a glance
- supplier-stated purity
- UK stocked, 24–48h dispatch after payment
- Stored frozen until dispatch
- Supplier documentation on request
Storage and handling
Supplied as a lyophilised powder in a sealed vial and kept frozen until dispatch. Unopened vials are typically stored at -20°C for the long term and 2-8°C for short periods. After reconstitution with bacteriostatic water, vials are generally refrigerated at 2-8°C, protected from light, and not subjected to repeated freeze-thaw cycles.
Specification
| Compound type | Selective growth-hormone secretagogue (pentapeptide) |
|---|---|
| Sequence | Aib-His-D-2-Nal-D-Phe-Lys-NH2 |
| Molecular formula | C38H49N9O5 |
| Molecular weight | ~711.9 g/mol |
| CAS number | 170851-70-4 |
| Synonyms | NNC 26-0161 |
| Purity | Supplier stated |
| Form | Lyophilised powder |
| Storage | -20°C long-term; 2-8°C short-term |
Questions
What is Ipamorelin?
A synthetic pentapeptide and selective growth-hormone secretagogue acting at the ghrelin/GHS receptor, supplied as a 5mg lyophilised vial for research.
What is Ipamorelin supplied as?
A 5mg lyophilised vial with supplier-stated purity, stored frozen until dispatch. Supplier documentation is available on request where held.
Do you stock Ipamorelin in the UK?
Yes. It is UK stocked with dispatch within 24–48 hours of confirmed payment on business days via tracked delivery.
Is Ipamorelin for research use only?
Yes. It is supplied strictly for laboratory research and is not for human or animal consumption.
What is the difference between Ipamorelin and CJC-1295?
They act on different receptors. Ipamorelin is a ghrelin-receptor (GHS-R1a) agonist; CJC-1295 No DAC is a GHRH analogue acting at the GHRH receptor. That is why the two often appear together in research on combined secretagogue signalling. Both are stocked here.
What is the difference between the Ipamorelin vial and the Ipamorelin pen vial?
The vial is 5mg of lyophilised powder that you reconstitute yourself. The Ipamorelin Pen Vial holds the same peptide already reconstituted as a 5mg/3ml liquid in a pen-compatible vial, supplied with a disposable research pen.
Where can I buy Ipamorelin in the UK?
North Peptides UK stocks Ipamorelin in the UK as a 5mg lyophilised vial and as a 5mg/3ml pen vial, both sent by tracked delivery within 24–48 hours of confirmed payment.
