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Growth Hormone Peptides

Ipamorelin

NNC 26-0161


£40.90incl. VAT
SKU IPAMORELIN-VIAL

Order before 12:00 on a working day and it ships today

Batch CoA included. HPLC purity and mass spec identity for your exact lot.
UK warehouse. Royal Mail Tracked 24, signature on delivery, 1 to 3 working days.
Plain packaging. Tamper evident, nothing on the outside naming the contents.
Stored at −20°C and shipped under inert atmosphere where the compound needs it.
Total£40.90

Compound data

Per batch CoA
Purity>98%
CAS number170851-70-4
Molecular formulaC38H49N9O5
Molecular weight711.868 g·mol−1
SequenceAib-His-D-2-Nal-D-Phe-Lys-NH2
Half life~2hours
StorageAway from light
PresentationLyophilised Powder

Figures above are the release specification. The certificate shipped with your vial carries the measured values for that specific lot. Email [email protected] with an order number for the raw chromatogram.

01

About this compound

Of the early growth hormone secretagogues that came out of the 1990s discovery push, Ipamorelin is the one that researchers still reach for when they want a clean signal. Its development code, NNC 26-0161, traces back to a Novo Nordisk programme looking for short GHRP analogues that triggered GH release without dragging cortisol and prolactin up with them. The team landed on a five-residue sequence, and that pentapeptide is what sits in the vial we ship.

Where it fits among the GHRPs

Most of the named growth hormone-releasing peptides, including GHRP-2 and GHRP-6, are hexapeptides. Ipamorelin is shorter by one residue, and that shorter chain produced an unusually selective profile in the original animal work. GH release through GHSR-1a was preserved. Activation of the ACTH and prolactin axes that complicates other GHRP studies was not detectable at active doses. For an in vitro project that needs a single-axis readout, that selectivity is the reason the molecule keeps showing up in protocols 25 years after it was first described.

What is actually in the vial

  • Mass: 5mg lyophilised peptide, white powder, sealed under inert gas
  • Sequence: Aib-His-D-2-Nal-D-Phe-Lys-NH2 (the original NNC 26-0161 pentapeptide)
  • Purity: >98% by reversed-phase HPLC, confirmed by mass spectrometry on the same lot you receive
  • Form: acetate salt, single-use rubber-stopper glass vial
  • Origin: synthesised inside the UK and EU, not relabelled bulk from unverified offshore suppliers

How researchers tend to use it

The half-life in animal models is roughly two hours, which makes Ipamorelin a useful tool for pulse-dose work where a brief, time-locked GH signal is wanted rather than a continuous one. In published research it shows up on its own in selectivity studies, and paired with CJC-1295 in protocols designed to separate the GHRH arm of the axis from the ghrelin-receptor arm. Whichever side of that comparison your assay is on, batch consistency between vials is the thing that decides whether your data is reproducible.

Sourcing, paperwork, and how we run the orders

Every batch is HPLC-traced and MS-confirmed before the lot leaves the bench, and the CoA travels in the box with the product. If a vial doesn’t match its paperwork, you get a refund. Not a store credit, an actual refund. Around 90% of UK orders arrive inside 48 hours because we ship from a UK warehouse with no customs handoff. The live chat during UK office hours is staffed by people, not a bot, and if you need ten vials or more for a longer-running study, the team will quote bulk pricing per lot through that same channel.

Sold strictly for in vitro laboratory research. Not for human or veterinary use. UK 18+.

02

Common questions

Is it legal to buy Ipamorelin in the UK?

Yes, Ipamorelin is legal to buy and possess in the UK when supplied and used strictly as a research chemical. It is not a controlled substance under the Misuse of Drugs Act, but it holds no marketing authorisation for human or veterinary use, so it cannot be sold for consumption. Every order ships labelled for laboratory research use only.

How fast is UK delivery, and how do you ship it?

Orders placed before the daily cut-off are dispatched within 48 hours from inside the UK, so most arrive in two to three working days on a tracked service. The lyophilised powder is stable at room temperature for short transit, so no cold chain is needed in the post. You receive tracking by email once the label is generated.

What does the Certificate of Analysis actually prove?

The CoA reports the identity and purity of the exact lot you receive, not a generic spec sheet. HPLC quantifies purity against the peptide content (this batch tests above 98 percent), while mass spectrometry confirms the molecular weight matches Ipamorelin at roughly 711.9 g/mol. If an independent test contradicts our CoA, the refund guarantee applies.

What is Ipamorelin and what does the research look at?

Ipamorelin is a synthetic pentapeptide and selective growth hormone secretagogue developed at Novo Nordisk in the 1990s under the code NNC 26-0161. Published in-vitro and animal research has looked at its action on the ghrelin receptor and its selective release of growth hormone, with studies noting little effect on prolactin or cortisol compared with earlier secretagogues such as GHRP-6.

What is the sequence, and how should it be reconstituted and stored?

Ipamorelin has the sequence Aib-His-D-2-Nal-D-Phe-Lys-NH2, a five-residue chain with a C-terminal amide. For laboratory handling the lyophilised powder is typically reconstituted with bacteriostatic or sterile water and kept refrigerated at 2 to 8 C once in solution. Sealed vials keep best in a freezer, away from light, where the peptide stays stable for months.

Do you offer bulk pricing on Ipamorelin?

Yes. Single 10mg vials are listed on this page, and multi-vial or lab-quantity pricing is available on request for repeat research buyers. Because every vial is drawn from HPLC and MS verified lots, bulk orders carry the same per-batch CoA and the same refund guarantee. Contact us with the quantity you need for a current quote and lead time.

Research use only. This compound is supplied for in vitro laboratory research. It is not a medicine, not a supplement, and is not licensed for human or veterinary use. Purchasers must be 18 or over and confirm research intent at checkout.
03

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