Ipamorelin is one of the most-searched research peptides, and UK laboratories tend to ask the same practical questions before sourcing it: what exactly is it, how does it differ from sermorelin, and how do you buy research-grade material you can trust? This guide answers all three with a UK research buyer in mind. Everything below is for laboratory research use only.
What is ipamorelin?
Ipamorelin is a synthetic pentapeptide (five amino acids; sequence Aib-His-D-2-Nal-D-Phe-Lys-NH2) described in the research literature as a selective ligand of the ghrelin / growth-hormone-secretagogue (GHS) receptor. It is supplied as a lyophilised (freeze-dried) powder and reconstituted in the laboratory before use. For the full chemical profile, see our in-depth ipamorelin research guide.
Ipamorelin vs sermorelin
The comparison UK researchers ask about most is ipamorelin vs sermorelin, and the short answer is that they act on different receptors. Sermorelin is a 29-amino-acid analogue of growth hormone-releasing hormone (GHRH 1-29) that targets the GHRH receptor, whereas ipamorelin is a much smaller five-amino-acid ligand of the ghrelin / GHS receptor. We break this down with a side-by-side table in our ipamorelin vs sermorelin comparison.
What to look for when you buy ipamorelin
Whether you buy ipamorelin in the UK or elsewhere, the factors that matter for reproducible research are the same:
- Purity — research-grade ipamorelin should be supplied at greater than 99% purity, since synthesis by-products can confound results.
- Certificate of analysis (COA) — a reputable supplier can provide a batch COA showing the HPLC purity figure and mass-spectrometry identity confirmation.
- Correct labelling — material should be clearly labelled for research use only, not for human or animal consumption.
- A traceable supplier — a registered company with a real address and a support channel, rather than an anonymous marketplace listing.
Buying ipamorelin in the UK
PurePeptides is a UK-registered supplier (Company No. 08033431, Middlesbrough) shipping research peptides with tracked, insured delivery across the UK and Europe. Orders placed before 3 PM on a business day are dispatched the same day, priced in GBP. You can view current pricing and stock on the ipamorelin product page.
A note on compliance: we supply ipamorelin strictly as a research chemical for laboratory use only. It is the purchaser's responsibility to ensure compliance with the laws and regulations that apply in their jurisdiction. Nothing here is medical advice, and ipamorelin is not for human or animal consumption.
Storage and reconstitution
Lyophilised ipamorelin is typically stored at -20°C, protected from light and moisture. In the laboratory it is commonly reconstituted with bacteriostatic water; once in solution it is kept refrigerated at 2-8°C with freeze-thaw cycles minimised. To work out concentrations and volumes for your protocol, our peptide reconstitution calculator is a useful tool.
Frequently asked questions
PurePeptides supplies ipamorelin in the UK strictly as a research chemical for laboratory use only, with tracked UK & EU delivery. It is the purchaser's responsibility to comply with the laws and regulations applicable in their jurisdiction.
No. Ipamorelin is a 5-amino-acid ghrelin / GHS-receptor ligand, while sermorelin is a 29-amino-acid GHRH-receptor analogue. See our ipamorelin vs sermorelin comparison for the full breakdown.
Research-grade ipamorelin should be supplied at greater than 99% purity, with a certificate of analysis (COA) available on request for the current batch.
With tracked, insured delivery. Orders placed before 3 PM on a business day (Mon-Fri) are dispatched the same day.
Buy research-grade ipamorelin
Greater than 99% purity, lyophilised powder, same-day dispatch before 3PM with tracked UK & EU delivery. Research use only.
Buy Ipamorelin →Disclaimer: All products supplied by PurePeptides are strictly for laboratory research use only. They are not for human or animal consumption and are not medical products. This article is informational and is not medical, clinical, or dosing advice.