Ipamorelin
Ipamorelin is a growth-hormone secretagogue valued for its selectivity in research settings — it is studied for GH release with comparatively little effect on other hormones.
Also known as: Selective GH secretagogue
Research context
- One of the most selective GH secretagogues in the literature.
- Frequently researched alongside CJC-1295.
- Available in 5mg and 10mg.
What ipamorelin is
Ipamorelin is a growth-hormone (GH) secretagogue — a research compound studied for its ability to stimulate the pituitary's endogenous release of growth hormone. What sets it apart in the literature is selectivity: it targets the growth-hormone axis with comparatively little reported effect on prolactin or cortisol, the two hormones most other secretagogues tend to disturb. For research projects where a clean GH-only signal matters, that selectivity profile is exactly why ipamorelin shows up so often in the protocols.
In this shop it is supplied as a research-grade lyophilised powder, per vial, with batch documentation (COA) available against the order — the same documentation standard the rest of the Growth Hormone & Anti-Ageing line is held to.
Where it sits in the Growth Hormone & Anti-Ageing category
The GH category here splits into two mechanisms. Secretagogues signal the pituitary to release the body's own GH (ipamorelin, CJC-1295, the GHRPs), while analogues act directly on their targets (tesamorelin, which is a modified GH itself). Ipamorelin is the anchor of the secretagogue half: the most selective single agent in that group, and the one most frequently researched in combination.
| Compound | Mechanism | Selectivity profile | Typical research role |
|---|---|---|---|
| Ipamorelin | GH secretagogue | High GH selectivity; low prolactin/cortisol response | Standalone, or paired with CJC-1295 |
| CJC-1295 (no DAC) | GHRH analogue | Prolonged GH-releasing signal; short half-life without DAC | Paired with a secretagogue |
| CJC-1295 + Ipamorelin | Combined | GHRH drive + selective secretagogue in one vial | Comprehensive GH-axis protocol |
| GHRP-2 | Ghrelin-receptor agonist | Broad: GH + appetite signal | GH release with metabolic signalling |
| Tesamorelin | GH analogue | Direct; acts on GH targets, not the pituitary | Adiposity-focused research |
Handling, reconstitution and supply
- Lyophilised (freeze-dried) powder in a single vial — 5mg and 10mg presentations, both stocked.
- Reconstitute with bacteriostatic water per the reconstitution guide; the guide covers sterile technique, vial storage and the standard 10-day post-reconstitution window used across this shop.
- Store lyophilised vials cool and dry; the COA for each batch is available on request against the order.
- For research-only use — it is not a medicine, not for human or veterinary use, and nothing here is dosing advice.
Ordering, payment and delivery
Card checkout runs on Stripe (prices in the table above); bank transfer is 10% off the card price, shown under each strength, with orders confirmed once the transfer clears. UK dispatch on working days; full details on the delivery page. If you are building a full GH-axis protocol, the Growth Hormone & Anti-Ageing category lists the whole line.
Frequently asked questions
Why is ipamorelin considered more selective than other GH secretagogues?
Studies in the literature report that ipamorelin stimulates GH release while producing comparatively little rise in prolactin or cortisol — the two hormones that broader secretagogues and GHRPs tend to move as well. In protocol design, that cleaner profile is usually the stated reason for choosing it.
What is the difference between ipamorelin and CJC-1295?
They work at different points. Ipamorelin is a secretagogue that makes the pituitary release its own GH; CJC-1295 is a GHRH analogue that provides a prolonged growth-hormone-releasing signal. Because they act differently, they are frequently researched together — that combination is stocked as a single vial (CJC-1295 + Ipamorelin).
What is the difference between ipamorelin and tesamorelin?
Completely different mechanisms. Ipamorelin signals the pituitary to release endogenous GH; tesamorelin is a modified GH itself that acts directly on GH targets. They sit on opposite sides of the category and are usually researched for different endpoints, not as substitutes.
What strengths does Peptide Supply Guy stock?
Two: 5mg and 10mg lyophilised powder, both with per-vial pricing in the table at the top of this page and 10% bank-transfer pricing underneath each card price.
How do I reconstitute it?
With bacteriostatic water, per the reconstitution guide — it covers the sterile setup, how much water to add, and storage timing. The vial arrives dry; nothing needs doing before you are ready to reconstitute.
Is it for human use?
No — like everything in this shop, ipamorelin is supplied for research purposes only. It is not a medicine, not for human or veterinary use, and nothing on this page is medical advice or a dosing recommendation.