Name: GHRP-6 Acetate 10mg (10 Vials / Kit)
Brand: HK Peptide
SKU: HK-G610
Price: 58.00 USD
Availability: InStock

GHRP-6 at a glance

GHRP-6, short for growth hormone releasing peptide-6, is a synthetic hexapeptide with the sequence His-D-Trp-Ala-Trp-D-Phe-Lys-NH2. It came out of structure-activity work on modified enkephalin-like peptides, well before its target receptor was cloned and before ghrelin was discovered. The formula is C46H56N12O6 and the molecular weight 873.0 g/mol. Unlike most listings in this catalogue, it is offered as a pre-filled research pen containing 10 mg rather than a vial of freeze-dried powder.

Price and availability

A kit of 10 vials at 10mg each (100 mg in total) from HK Peptide, shipped from Hong Kong, Hong Kong. The price is $58.00, or $0.58 per milligram of peptide. Of the 12 GHRP-6 listings on the marketplace, from 10 brands, this is the 3rd-lowest price per mg. Funds stay in escrow and are released to HK Peptide only when you mark the order as received.

This listing: HK Peptide GHRP-6

Brand: HK Peptide
Kit: 10 vials × 10 mg (100 mg in total)
Price per vial: $5.80
Price per mg: $0.58
Other strengths: 5mg $20.00
Also sold by: Nouveaux 10mg $200.00 · Uther Peptide 10mg $60.00 · Cyprus Peptides 5mg $97.00 · Lianhua Peptide Co. 5mg $46.00 · SSRBIO 5mg $38.70 · European Peptide Sciences 5mg $270.00

Lab testing

There is no public lab report for this listing yet. We can ask the brand for the batch COA before you order. Many buyers also split an independent HPLC test with others who bought the same batch.

Request the batch COA · How group testing works

Bought through escrow: the brand is only paid after you confirm delivery. If the parcel never arrives, or an independent test shows the wrong compound or a significant under-fill, open a claim before releasing payment.

What it is studied for

As an agonist at GHS-R1a, GHRP-6 acts on pituitary somatotrophs and on hypothalamic neurons. At the pituitary, receptor signaling raises intracellular calcium and releases growth hormone; in the hypothalamus it is proposed to increase GHRH input and counter somatostatin. The same receptor drives hunger signaling, and GHRP-6 is noted in animal studies for a pronounced orexigenic effect. Modest rises in ACTH, cortisol and prolactin have been reported. Separate work describes binding to the scavenger receptor CD36 in cardiac tissue, examined in cytoprotection models, which may be independent of ghrelin-receptor activity.

Research and regulatory status

GHRP-6 has a long preclinical record in pituitary cell, rodent and larger-animal studies, plus early human pharmacology that helped define the secretagogue concept. It was never developed into an approved therapy, and later compounds with greater selectivity replaced it in most secretagogue research. Cytoprotection and appetite studies continue in academic settings. Research-grade GHRP-6 is sold for laboratory use only, and its quality and fill should be judged from the lab report attached to each listing.

Checking the lab data

For a pen, the report should test the solution itself: mass-spectrometry identity consistent with 873.0 g/mol, HPLC purity, and a measured concentration so the stated 10 mg per pen can be checked. Sterility or bioburden and endotoxin results are relevant for any pre-filled liquid. The report should also list the diluent and any preservative, the pen's lot number, and a test date recent enough to reflect stability in solution.

This listing has no third-party report on file yet. The lab reports directory and the marketplace show which brands do publish testing.

Listing details

Compound: GHRP-6
Synonyms: Growth Hormone Releasing Peptide-6
Class: Synthetic hexapeptide, ghrelin receptor (GHS-R1a) agonist
Format: Pre-filled research pen
Molecular formula: C₄₆H₅₆N₁₂O₆
Molecular weight: 873.0 g/mol
Vial strength: 10mg
Vials per kit: 10
Total content: 100 mg
Price per mg: $0.58
Sold by: HK Peptide
Ships from: Hong Kong, Hong Kong
Lab report: Not yet published

Storage and preparation

Freeze-dried peptide keeps best sealed, cold and dark. Once it has been dissolved, refrigerate it, avoid repeated warming and follow the stability limits in your study protocol.

Concentration arithmetic: one 10 mg vial dissolved in 2 mL gives 5 mg/mL, or 10 mg/mL in 1 mL. The Research Lab calculator in your dashboard handles any other volume.

Buyer questions

Why is GHRP-6 historically important?

Its ability to release growth hormone through a receptor distinct from the GHRH receptor showed that a separate signaling system existed. That observation drove efforts to clone the receptor, and the search for its natural ligand eventually led to the discovery of ghrelin. GHRP-6 is therefore often cited as the compound that opened the field.

What should buyers know about the pen format compared with a powder vial?

A peptide already in solution is generally less stable than the same peptide freeze-dried, so storage conditions and manufacture date carry more weight. Buyers should check that the brand states what the solution contains and supplies a recent batch report. Escrow on GLP1 Forum Escrow allows the item to be inspected on arrival before funds are released.

How much GHRP-6 is in this listing?

10 vials of 10mg each — 100 mg in all. Where a lab report exists, the testing panel above shows what the brand's tested sample actually measured.

When does HK Peptide get paid?

Only after you confirm delivery. Until then the payment is held in escrow, and you can open a claim if anything is wrong with the order.

Supplied for laboratory research only. Not for human or veterinary use, and not a substitute for any prescription medicine. Nothing on this page is medical advice.