Research onlyFor laboratory research · Not intended for human or animal application
GradePurity

GHRP-2

Growth Hormone Releasing Peptide-2.

4.4 · 26 reviews
99.1% HPLCLab-verifiedResearch only
GHRP-2, research-grade peptide vial
€ 59,95

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Bacteriostatic water

Needed to reconstitute lyophilised vials.

Insulin needles

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1
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Ships from NL · 1–2 day EU delivery
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GHRP-2 (Growth Hormone Releasing Peptide-2), also known as pralmorelin, is a synthetic hexapeptide of six amino acids. Like GHRP-6, it mimics ghrelin and binds to the GHS receptor, by which it stimulates the release of growth hormone in research, but with a strong growth-hormone response and less appetite effect than GHRP-6. Under the name pralmorelin it was used in Japan as a diagnostic test for growth-hormone function. At GradePurity you buy GHRP-2 as a research-grade peptide: a lyophilised vial with ≥99% HPLC purity, shipped same-day from the Netherlands.

What does GHRP-2 do?

GHRP-2 (Growth Hormone Releasing Peptide-2) is a synthetic hexapeptide that prompts the release of growth hormone in research. It is not growth hormone itself, but a signalling substance: it binds to the GHS receptor, the same receptor on which the hormone ghrelin acts, and thereby prompts the pituitary to release growth hormone. GHRP-2 is known as one of the more potent substances in this family, with a strong and reliable growth-hormone response.

How does GHRP-2 work?

GHRP-2 is a ghrelin mimetic: it mimics the action of ghrelin and binds to the GHS receptor (growth hormone secretagogue receptor) in the pituitary and hypothalamus. There it sends a pulse that prompts the pituitary to release growth hormone. In research, GHRP-2 stands out for a strong, predictable growth-hormone response, one of the reasons it has also been studied as a diagnostic substance. What we know about this comes from the scientific literature.

GHRP-2 in the GHRP family

GHRP-2 belongs to the growth hormone secretagogues, together with GHRP-6 and ipamorelin. What sets GHRP-2 apart is the combination of a strong growth-hormone response with little appetite effect, where GHRP-6 is known as the "hunger variant". Ipamorelin is the most selective of the three and barely affects appetite, cortisol or prolactin; GHRP-2 and GHRP-6 do. In terms of profile, GHRP-2 sits between the two: strong on growth hormone and with less hunger than GHRP-6, but less selective than ipamorelin. If you want to compare the family, you will find GHRP-6 and ipamorelin separately in our range.

Pralmorelin: GHRP-2 as a diagnostic

GHRP-2 has a second name you will come across in the scientific literature: pralmorelin (developmental code KP-102). Under that name, GHRP-2 was registered and used in Japan as a diagnostic test, a short, strong growth-hormone stimulus used to assess whether the pituitary responds well. That also explains why GHRP-2 is known in research for its reliable response. Outside that specific diagnostic context, GHRP-2 is not an approved medicine.

Side effects of GHRP-2

In the research literature, GHRP-2 is described with effects related to its action on the growth-hormone route. Unlike GHRP-6, the increase in appetite is limited, but GHRP-2 can cause fluid retention (oedema) and a temporary rise in cortisol and prolactin, in that it resembles GHRP-6 and differs from the more selective ipamorelin. In general it is described in the literature as well tolerated. These are observations from research, not data about laboratory use. GradePurity supplies GHRP-2 solely as a research substance and gives no dosing or safety advice for personal use.

Reconstituting and storing GHRP-2

GHRP-2 is supplied as a lyophilised powder in a vial. For research it is mixed with bacteriostatic water; GradePurity gives no dosing or administration advice. Store the unopened vial dry, dark and cool. After mixing, the solution goes in the fridge (2–8 °C), protected from light, and is used within a short time; for longer storage the unopened vial can go in the freezer. The specifications in the table at the bottom of this page are intended for your research documentation.

Purity and lab testing

Every batch of GHRP-2 is checked in the lab for purity (≥99% HPLC) and identity. So you know exactly what you are holding, and that is the real difference from anonymous suppliers. Per lot we record the purity and identity data. The exact specifications, sequence, molecular weight and purity, are in the table at the bottom of this page.

Frequently asked questions

What our customers say.

Verified buyers across the Netherlands

★★★★★4.9 / 5Verified
★★★★★

Ordered Friday 3 PM, delivered Tuesday morning in Utrecht. Neatly packed and the COA simply arrived by email.

Sven K.

Verified purchase

BPC-157
★★★★★

Finally a supplier that just shows the HPLC + MS figures. Purity was exactly as promised.

Lotte v.d. B.

Verified purchase

TB-500
★★★★★

Fast parcel out of the Netherlands. Emailed a question, got a reply within a few hours. Top service.

Paul M.

Verified purchase

GHK-Cu
★★★★★

Next business day in Rotterdam. Well and discreetly packed, will definitely order again.

Marco R.

Verified purchase

BPC-157
★★★★★

Ordered around 3 PM, delivered Wednesday morning. Unbranded envelope, my courier had no idea what was inside.

Niels J.

Verified purchase

Ipamorelin
★★★★★

Within 24 hours from NL stock. COA with MS identity confirmation — hard to find anywhere else.

Jonas W.

Verified purchase

CJC-1295
★★★★

Delivery spot-on, COA detailed. Would appreciate a more extensive FAQ per peptide on the site.

Eva R.

Verified purchase

GHK-Cu
★★★★★

Ordered Tuesday before 4 PM, at my door Wednesday in Breda. Payment went flawlessly.

Bram H.

Verified purchase

Semaglutide
★★★★★

Genuinely from NL stock, so no customs hassle. Vial well freeze-dried, everything tightly packed.

Femke S.

Verified purchase

Retatrutide
★★★★

Purity on the HPLC comfortably above 99%. Delivery a day later than hoped, nothing else to fault.

Thijs M.

Verified purchase

TB-500
★★★★★

Ordered Friday 3 PM, delivered Tuesday morning in Utrecht. Neatly packed and the COA simply arrived by email.

Sven K.

Verified purchase

BPC-157
★★★★★

Finally a supplier that just shows the HPLC + MS figures. Purity was exactly as promised.

Lotte v.d. B.

Verified purchase

TB-500
★★★★★

Fast parcel out of the Netherlands. Emailed a question, got a reply within a few hours. Top service.

Paul M.

Verified purchase

GHK-Cu
★★★★★

Next business day in Rotterdam. Well and discreetly packed, will definitely order again.

Marco R.

Verified purchase

BPC-157
★★★★★

Ordered around 3 PM, delivered Wednesday morning. Unbranded envelope, my courier had no idea what was inside.

Niels J.

Verified purchase

Ipamorelin
★★★★★

Within 24 hours from NL stock. COA with MS identity confirmation — hard to find anywhere else.

Jonas W.

Verified purchase

CJC-1295
★★★★

Delivery spot-on, COA detailed. Would appreciate a more extensive FAQ per peptide on the site.

Eva R.

Verified purchase

GHK-Cu
★★★★★

Ordered Tuesday before 4 PM, at my door Wednesday in Breda. Payment went flawlessly.

Bram H.

Verified purchase

Semaglutide
★★★★★

Genuinely from NL stock, so no customs hassle. Vial well freeze-dried, everything tightly packed.

Femke S.

Verified purchase

Retatrutide
★★★★

Purity on the HPLC comfortably above 99%. Delivery a day later than hoped, nothing else to fault.

Thijs M.

Verified purchase

TB-500
★★★★★

The BPC + TB stack comes as two separate vials, each with its own COA. Not pre-mixed — exactly what I wanted.

Tom B.

Verified purchase

Recovery Stack
★★★★★

The COA was clear and readable. Delivered the next business day in The Hague. Helpful support by email.

Charlotte F.

Verified purchase

Selank
★★★★★

Arrived in a plain, neutral envelope. My neighbour who took it in literally had no clue what was inside. Privacy = 10.

Anouk d. V.

Verified purchase

Semax
★★★★★

Purity per COA 99.3%. Vial nicely freeze-dried, no yellow discolouration. Shipping from NL trouble-free.

Lukas K.

Verified purchase

Epitalon
★★★★★

Emailed a question on Saturday, Monday morning I got a reply from a real person. No cookie-cutter template. Real service.

Sara P.

Verified purchase

BPC-157
★★★★★

Shipped to Tilburg in one business day. Payment trouble-free. Identity neatly confirmed by MS on the COA.

Daniel S.

Verified purchase

TB-500
★★★★★

Second order. The first was problem-free, so no reason to look elsewhere. COA again with HPLC + MS figures.

Iris K.

Verified purchase

Ipamorelin
★★★★★

Messaged a question about storage, got a clear answer. Nice that there is simply someone reachable.

Joris V.

Verified purchase

CJC-1295
★★★★★

Completely neutral packaging, nothing visible on the outside. Delivered next day in Nijmegen. Exactly what I was after.

Sanne D.

Verified purchase

Tirzepatide
★★★★★

Shipped quickly from the Netherlands, and the COA confirmed the purity nicely. Third time ordering here without complaints.

Ruben T.

Verified purchase

GHK-Cu
★★★★★

The BPC + TB stack comes as two separate vials, each with its own COA. Not pre-mixed — exactly what I wanted.

Tom B.

Verified purchase

Recovery Stack
★★★★★

The COA was clear and readable. Delivered the next business day in The Hague. Helpful support by email.

Charlotte F.

Verified purchase

Selank
★★★★★

Arrived in a plain, neutral envelope. My neighbour who took it in literally had no clue what was inside. Privacy = 10.

Anouk d. V.

Verified purchase

Semax
★★★★★

Purity per COA 99.3%. Vial nicely freeze-dried, no yellow discolouration. Shipping from NL trouble-free.

Lukas K.

Verified purchase

Epitalon
★★★★★

Emailed a question on Saturday, Monday morning I got a reply from a real person. No cookie-cutter template. Real service.

Sara P.

Verified purchase

BPC-157
★★★★★

Shipped to Tilburg in one business day. Payment trouble-free. Identity neatly confirmed by MS on the COA.

Daniel S.

Verified purchase

TB-500
★★★★★

Second order. The first was problem-free, so no reason to look elsewhere. COA again with HPLC + MS figures.

Iris K.

Verified purchase

Ipamorelin
★★★★★

Messaged a question about storage, got a clear answer. Nice that there is simply someone reachable.

Joris V.

Verified purchase

CJC-1295
★★★★★

Completely neutral packaging, nothing visible on the outside. Delivered next day in Nijmegen. Exactly what I was after.

Sanne D.

Verified purchase

Tirzepatide
★★★★★

Shipped quickly from the Netherlands, and the COA confirmed the purity nicely. Third time ordering here without complaints.

Ruben T.

Verified purchase

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