GHRP-2 5mg

GHRP-2 5mg is a GH releasing peptide, and we stock it in a 5mg vial for laboratory work. You pay $20 and shipping costs nothing, whether the order goes across the US or overseas. Every batch we sell is synthesized and lyophilized in the USA. Scroll the product images to see the lot’s certificate of analysis.

About GHRP-2

GHRP-2 (pralmorelin) is a six-amino-acid synthetic peptide that acts on the ghrelin receptor and makes the pituitary release growth hormone. It came out of the growth hormone releasing peptide program started by Cyril Bowers at Tulane University.

Compared with GHRP-6 it releases more GH for the same amount and has a smaller effect on appetite, though it still raises cortisol and prolactin a little. In Japan it’s approved as a diagnostic agent for testing GH deficiency.

What studies report about GHRP-2

Bowers and colleagues published a series of human studies in the 1990s showing that GHRP-2 raised GH in a dose-related way, and that giving it with GHRH produced a much bigger GH pulse than either one alone.

Later work used it to test pituitary GH reserve and looked at its effects on appetite and food intake, which are milder than with GHRP-6.

The full list of GHRP-2 papers is on PubMed, and most abstracts are free to read.

The biology behind GHRP-2

GHRP-2 binds GHS-R1a, the receptor that ghrelin uses. In the pituitary that triggers GH release, and in the hypothalamus it adds to the GHRH signal and damps somatostatin, the hormone that holds GH back.

Because GHRP-2 and GHRH push on two different receptors, labs often combine them. The result is a GH pulse larger than the sum of each one on its own.

GHRP-2 5mg at a glance: the specs

• Compound: GHRP-2
• Other names: pralmorelin
• CAS number: 158861-67-7
• Molecular formula: C45H55N9O6
• Molecular weight: 817.9 g/mol
• Sequence or structure: D-Ala-D-2Nal-Ala-Trp-D-Phe-Lys-NH2
• Amount: 5mg
• Form: lyophilized (freeze-dried) powder
• Made: synthesized and lyophilized in the USA
• Lot paperwork: COA, HPLC and MS images in the gallery
• SKU: GHRP-2-5mg

GHRP-2 5mg certificate of analysis

Three documents sit in the image gallery. The certificate of analysis lists the lot number, sequence, storage temperature and the test results. The HPLC chromatogram is the purity test, and the mass spectrum confirms the molecular weight.

If you need the PDF for a lab notebook or an ethics file, send us the order number and we’ll email it.

Reconstituting GHRP-2 5mg

With 5mg in the vial, common water volumes work out like this:

• 1mL of water: 5mg per mL
• 2mL of water: 2.5mg per mL
• 3mL of water: 1.67mg per mL

Use sterile bacteriostatic water and add it slowly, aiming at the glass instead of the powder. A gentle swirl is all it needs.

Before mixing, keep it at -20°C and out of the light. After mixing, the fridge at 2 to 8°C, and use it within about four weeks.

Planning a study with GHRP-2 5mg

Work out the total amount the protocol needs first, then add about 20% for test runs and the odd lost dose. Ordering everything from one lot keeps the material consistent through the whole study.

GHRP-2 options in stock

• GHRP-2 5mg (this page): $20, $4 per mg
• GHRP-2 10mg: $39, $3.90 per mg

These are the GHRP-2 options we carry. Price per milligram drops as the amount goes up.

GHRP-2 compared with similar peptides

In short, GHRP-2 is the strongest GH releaser of the original GHRPs, with a milder appetite effect than GHRP-6. Here’s how its neighbors differ:

• Mod GRF 1-29 is a stabilized GHRH(1-29) with a half-life of about 30 minutes, giving short, natural-looking pulses
• CJC-1295 DAC binds albumin and lasts about a week, giving a raised GH baseline instead of short pulses
• Sermorelin is the unmodified first 29 amino acids of GHRH, broken down within minutes
• Tesamorelin is full-length GHRH with a fatty acid cap, the only GHRH analog currently approved as a drug in the US
• Ipamorelin is the most selective ghrelin-receptor peptide, with little effect on cortisol or prolactin
• GHRP-6 releases GH and strongly raises appetite, the classic tool for feeding research
• Hexarelin is a very potent GHRP that also binds CD36 on heart cells

The GHRH analogs share one receptor and differ mostly in how long they last. Ipamorelin and the GHRPs work on the ghrelin receptor, so labs often pick one from each side. All of them are on our growth hormone peptides page.

Related growth hormone peptides

• Mod GRF 1-29 GHRP-2 Blend 10mg, with Mod GRF 1-29 and GHRP-2 in one vial
• GHRP-6 10mg, a GH releasing peptide
• CJC-1295 Ipamorelin GHRP-2 Blend 9mg, with Mod GRF 1-29, Ipamorelin and GHRP-2 in one vial
• CJC-1295 GHRP-6 Blend 10mg, with Mod GRF 1-29 and GHRP-6 in one vial

See everything in growth hormone peptides, or browse all research peptides from the Biotech Peptides home page.

Buying GHRP-2 5mg from Biotech Peptides

Our catalog is narrow on purpose: research peptides, blends and cosmetic peptide powders. That keeps stock moving, so the vial you order isn’t one that has been sitting on a shelf for a year.

Problems with an order go through the contact page. Include the order number and a photo of anything damaged.

Free shipping on GHRP-2 5mg

Shipping is free on every order, to the US, Canada, the UK, Europe, Australia and the other countries we serve. Freeze-dried peptide handles normal transit temperatures, so it travels in standard packaging and goes into the freezer when it arrives.

Every product is listed in our shop, and the Biotech Peptides Shop home page links to the blog’s country-by-country delivery guides.

GHRP-2 5mg questions and answers

Is GHRP-2 approved for human use?

No. It’s sold for laboratory research only and isn’t for human or veterinary use.

How much does shipping cost?

Nothing. Shipping is free on every order worldwide.

What do I reconstitute GHRP-2 5mg with?

Sterile bacteriostatic water. The mixing section above lists concentrations for common volumes.

How should GHRP-2 5mg be stored?

Frozen at -20°C while dry. After mixing, in the fridge at 2 to 8°C, used within about four weeks.

Does GHRP-2 5mg come with a COA?

Yes. The certificate of analysis, HPLC trace and mass spectrum for the lot are in the product images.

GHRP-2 5mg for sale now

Ready to order? GHRP-2 5mg is $20 and ships free. Use the cart button at the top of the page.

Building a larger order? Browse the growth hormone peptides as well.

For laboratory research only. Not for human or veterinary use, and not evaluated by the FDA.