GHRP-2 is synthetic hexapeptide growth hormone secretagogue (formula C45H55N9O6, average mass 818 g/mol, CAS 158861-67-7). GHRP-2 is sold here for laboratory research in 3 sizes (5mg to 15mg), from $45.00 a vial. It is not an FDA-approved medicine. Research use only, and never for people or animals.
GHRP-2 specifications
| Product name | GHRP-2 |
|---|---|
| Also sold as | GHRP 2 peptide, pralmorelin, GHRP-2 acetate |
| Formula | C45H55N9O6 |
| Average mass | 818 g/mol |
| CAS number | 158861-67-7 |
| Physical form | Freeze-dried powder, a solid cake in a sealed vial |
| Appearance | White to off-white cake |
| Sizes on this page | 5mg · 10mg · 15mg |
| Purity specification | ≥99% by RP-HPLC. The number for the lot you receive is whatever its own certificate says. |
| Identity check | Mass spectrometry, read against the mass this compound should have |
| Net content | Weighed per lot and reported separately from purity |
| Lot documentation | Tested by Kovera Labs; each lot's certificate posts here when it is reported |
| Storage | Sealed, cold and out of the light |
| Ships from | Santa Ana, California by USPS with tracking on every order, same business day on verified in-stock orders placed before 12 PM Pacific |
| Intended use | Laboratory research only. Not for human or animal use. |
What is GHRP-2, and what is it used for?
GHRP-2 is also listed and searched as GHRP 2 peptide, pralmorelin, GHRP-2 acetate. They all mean the same compound. Supplier lists write it as GHRP-2 peptides or peptide GHRP-2 as well; every one of those is this record. A name is not a test, which is why the lot record further down counts for more than the wording on a label.
Chemically: molecular formula C45H55N9O6, average mass 818 g/mol (PubChem CID 6918245). Those figures are what the identity test on a certificate is read against.
Synthetic hexapeptide growth hormone secretagogue.
Agonist at the growth hormone secretagogue receptor (GHS-R1a). Reported as more potent than GHRP-6 for growth hormone release but with lower maximal efficacy, and it likewise raises ACTH and cortisol.
Studied alongside GHRP-6 in the growth hormone secretagogue literature, and used as a comparator in the characterization of later, more selective compounds.
No approved product in the United States or European Union. The selectivity limitation is a property of the molecule.
GHRP-2 for sale: 5mg, 10mg and 15mg vials, price per mg
GHRP-2 is sold in 3 sizes here, 5mg, 10mg and 15mg, from $45.00 a vial. GHRP-2 cost and GHRP-2 price per mg by size are in the table, at each volume tier and on subscription; the per-mg figure under each price is the one that compares across sizes.
Volume and subscription pricing by size
| Size | One vial | 10–19 vials−10% | 20 vials−15% | Subscribe monthly−6% from shipment 2 | Availability |
|---|---|---|---|---|---|
| GHRP-2 5mg | $45.00$9.00/mg | $40.50a vial · $8.10/mg | $38.25a vial · $7.65/mg | $42.30a vial, shipment 2 on · $8.46/mg | Backordered — waitlist |
| GHRP-2 10mg | $75.00$7.50/mg | $67.50a vial · $6.75/mg | $63.75a vial · $6.38/mg | $70.50a vial, shipment 2 on · $7.05/mg | Backordered — waitlist |
| GHRP-2 15mg | $80.00$5.33/mg | $72.00a vial · $4.80/mg | $68.00a vial · $4.53/mg | $75.20a vial, shipment 2 on · $5.01/mg | Backordered — waitlist |
Volume tiers are per size and do not combine across sizes (see bulk pricing). Subscribe & Save takes 6% every month, 4% every 2 months or 2% every 3 months off from shipment 2, two shipments minimum, and stacks on the volume tier: the lowest this record ever bills is $7.19 per mg, twenty 5mg vials on a monthly subscription from shipment 2 onward.
Nothing is added at checkout except the USPS shipping you choose; dispatch and delivery are the same on every order. The cost-per-milligram tool ranks the whole catalog by price per mg.
Where to buy GHRP-2: what to check before you order from anyone
Where to get GHRP-2, and how to buy GHRP-2 online
GHRP-2 for sale, or GHRP-2 peptide for sale, means this page: one record, 3 sizes. You can buy GHRP-2 online here with guest checkout, and purchase GHRP-2 or order GHRP-2 in any size below; verified in-stock orders placed before 12 PM Pacific are dispatched the same day.
Before ordering GHRP-2 from anyone, us included, run the 5 checks on verifying a certificate; the first is that the report resolves on the laboratory's own site, and a seller who cannot pass them is asking for the trust a certificate exists to replace.
GHRP-2 nasal spray, oral form or capsules? What this vial is, and is not
Search results for GHRP-2 also show nasal spray, oral form, capsules products, under listing titles such as ghrp 2 nasal spray, ghrp 2 oral, ghrp 2 oral administration, ghrp 2 pills, ghrp 2 powder, ghrp 2 spray. Those are finished consumer goods made and marketed by other companies, and none of them is what this page sells. This record is freeze-dried GHRP-2 in a sealed glass vial, 5mg, 10mg and 15mg, with a lot certificate, supplied for laboratory work. Its certificate describes that powder, not a capsule, spray or cream, which carry other ingredients and sit under different rules.
GHRP-2 vs GHRP-6 and Ipamorelin: different molecules, separate records
GHRP-2 vs GHRP-6, or GHRP-6 vs GHRP-2, is the comparison people search most, with Ipamorelin close behind, and they are not the same thing. Each is a different molecule with a different formula, mass and research record, and each has its own certificate here. Cjc-1295 ipamorelin ghrp-2 blend is searched too; no such blend is sold here, each is its own record with its own certificate, and a certificate for a blend from anyone else reports on the mixture, not on either compound alone.
GHRP-6 vs GHRP-2: the same comparison, side by side
| Record | Class | Formula | Avg. mass | Sizes here |
|---|---|---|---|---|
| GHRP-2 | Synthetic hexapeptide growth hormone secretagogue. | C45H55N9O6 | 818 | 5mg · 10mg · 15mg from $45.00 |
| GHRP-6 | Synthetic hexapeptide growth hormone secretagogue. | C46H56N12O6 | 873 | 5mg · 10mg from $45.00 |
| Ipamorelin | A man-made five-building-block peptide that makes the pituitary release growth hormone. | C38H49N9O5 | 711.9 | 5mg · 10mg from $44.00 |
Documentation compared in full: GHRP-2 vs GHRP-6, side by side · GHRP-2 vs Ipamorelin, side by side.
The GHRP-2 certificate: lot, purity, identity, and how to verify it
A certificate answers identity, purity and net content as three separate questions, each with the method that produced it and the date it was run, how to read one covers what each field does and does not cover. For GHRP-2 that means a mass spectrum landing on 818 g/mol for C45H55N9O6, the figure published against PubChem CID 6918245.
Listings elsewhere describe GHRP-2 as an acetate, an arginate salt or an N-acetyl form. Those are different chemical forms with different masses, and a certificate identifies which one was actually tested. The form of the lot on this page is whatever its certificate states; it is not assumed from a listing name, ours included.
GHRP-2 certificates post here and in the certificate index when Kovera Labs reports on the lot.
Solution arithmetic for the bench, with no administration guidance: the vial concentration calculator, preset to GHRP-2.
Is GHRP-2 legal? FDA status, and what this listing is
FDA status, and what this listing is Not an FDA-approved drug product
The FDA has not approved this compound for anything, and nothing in this catalog is a medicine.
Status verified 2026-08-25. Check the primary source before relying on this summary.
Whether GHRP-2 is legal depends on what it is being used for and where. It is sold as laboratory material under the research-use restriction below. Being listed is not an approval, and not a claim that it is safe, effective or right for any purpose.
GHRP-2 research: what the published studies examine
Status: No FDA-approved application. This compound is sold as laboratory material. Where research on it has been published, it sits at the animal, cell or early-human stage, and this record does not summarize what it found. A supplier is not a neutral judge of evidence about its own catalog.
GHRP-2 is a synthetic hexapeptide in the same series as GHRP-6 and shares its receptor. It acts at the growth hormone secretagogue receptor — the same receptor ghrelin binds — rather than at the GHRH receptor, so it belongs to a different arm of the growth hormone axis than sermorelin or tesamorelin. The defining limitation of the older GHRP series, and the reason ipamorelin was subsequently developed, is selectivity: these compounds release growth hormone but also raise ACTH and cortisol, and they raise prolactin.
That is receptor pharmacology acting where the receptor is expressed, not an impurity problem, and it cannot be formulated away. The distinction from GHRP-6 is a potency-efficacy trade: in swine, GHRP-2 displayed higher potency but lower maximal efficacy than GHRP-6 (ED50 0.6 nmol/kg with Emax 56 ng/ml plasma, against 3.9 nmol/kg and 74 ng/ml). Higher potency and lower ceiling are different properties and are frequently conflated in commercial writing about this compound.
| Reported observation | Model | Source |
|---|---|---|
| In conscious swine, GHRP-2 released growth hormone with higher potency but lower efficacy than GHRP-6 (ED50 0.6 nmol/kg, Emax 56 ng/ml against 3.9 nmol/kg and 74 ng/ml). Administration of both GHRP-6 and GHRP-2 resulted in increased plasma ACTH and cortisol; ipamorelin, tested in the same experiment, did not. No secretagogue tested affected FSH, LH, prolactin or TSH in swine. | conscious swine, with rat pituitary cell and anaesthetised rat comparisons | Raun and colleagues, Ipamorelin, the first selective growth hormone secretagogue, European Journal of Endocrinology (1998)Cited here for its GHRP-2 data. The ACTH and cortisol finding is the material one. |
| The receptor targeted by the synthetic growth hormone secretagogues was cloned from pituitary and from arcuate ventromedial and infundibular hypothalamus of swine and humans, and characterized as a G-protein-coupled receptor. The authors concluded the secretagogues mimic an undiscovered hormone — a prediction confirmed three years later with the identification of ghrelin. | receptor cloning and pharmacological characterization, swine and human tissue | Howard and colleagues, A receptor in pituitary and hypothalamus that functions in growth hormone release, Science (1996) |
Open questions. As with GHRP-6, the honest summary is that this compound was characterized and then superseded. Higher potency than GHRP-6 does not mean a better compound — the maximal response is lower, and the ACTH and cortisol rise remains. There is no approved product and no modern controlled safety data. The pituitary-mediated mechanism means any response depends on pituitary reserve rather than on the peptide alone.
Each row above describes an observation in the stated model. None of it describes what GHRP-2 would do in a person or an animal outside that model, and none of it is a recommendation to use it for anything.
How to store GHRP-2: refrigeration and shelf life
Keep the sealed vial cold and out of the light and it stays as it left the lab. Once it is mixed into a solution, how long it holds up depends on the compound, what it was mixed with, how strong the solution is and how cold it is kept — too many variables for anyone to print one shelf life on a label. So laboratories write the date on whatever they prepare and keep their own record of it.
For solution preparation arithmetic on the bench, concentration, per-graduation values and molarity, use the vial concentration calculator, which opens with the GHRP-2 sizes stocked here already loaded. It covers laboratory measurement only and contains no administration guidance.
