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GHRP-6 is a hexapeptide tasked with the stimulation of growth hormone production. According to researchers this is done through the inhibition of somatostatin. Somatostatin is what controls growth hormone release.

Application: blocks somatostatin, the hormone that inhibits GH secretion.
CAS: 87616-84-0
Molecular Weight: 873.01 g·mol
Chemical Formula: C46H56N12O6
Chemical Name: (2S)-6-Amino-2-[[2-[[(2S)-2-[[(2S)-2-[[(2R)-2-[[(2S)-2-amino-3-(1H-imidazol-5-yl)propanoyl]amino]-3-(1H-indol-3-yl)propanoyl]amino]propanoyl]amino]-3-(1H-indol-3-yl)propanoyl]amino]-3-phenylpropanoyl]amino]hexanamide
Storage: Minimize open air exposure, store in a cool dry place.
Stability: 2 years
Purity: 98%
Solubility: Soluble to DMSO at rate of 30 mg/mL
Physical Form: fine powder in glass vial
Specifications: 5mg vial
Terms: The products we offer are intended for laboratory research use only. You will need to purchase Bacteriostatic water separately.

GHRP-6 is a hexapeptide that can artificially stimulate growth hormone production. It blocks the hormone that inhibits GH secretion, somatostatin. Peptide GHRP-6 from Paradigm Peptide comes in a 5 mg vial and looks like white powder.

Comparison of the Effects of Ghrelin, GHRP-6 and Motilin in Rat Model

The study compared the gastroprokinetic effects of ghrelin, growth hormone releasing peptide 6 (GHRP-6), and motilin in rats both in vivo and in vitro. Ghrelin and GHRP-6, but not motilin, were found to accelerate gastric emptying and transit in rats, with ghrelin demonstrating greater potency than GHRP-6. The dose-response relationship for ghrelin was bell-shaped, unlike GHRP-6.

In antral and fundic strips, neural responses to electrical field stimulation (EFS) included an on-relaxation reversed into a cholinergically mediated contraction by the addition of NG-nitro-l-arginine methyl ester hydrochloride (l-NAME). Ghrelin agonists reduced on-relaxations in fundic strips and increased cholinergic off-contractions in both antral and fundic strips. The concentration-response curves for muscle strips of the fundus were bell-shaped, with maximal effects observed for ghrelin and GHRP-6. [4]

No effects were observed with motilin across the different experimental conditions. The presence of growth hormone secretagogue receptor 1a transcripts in the strip preparations was confirmed by reverse transcriptase polymerase chain reaction (RT-PCR). [4]

In conclusion, ghrelin and GHRP-6 accelerate gastric emptying and transit by activating cholinergic excitatory pathways in the enteric nervous system, in addition to the known vagal pathways. Motilin, however, did not exhibit similar effects under the studied conditions.

Effects GHRP-6 on Septic Ileus in Mice

The study investigated the effects of ghrelin and growth hormone-releasing hormone 6 (GHRP-6) on gastric emptying and transit in both control and septic mice. Mice were administered lipopolysaccharides (LPS) to induce sepsis or saline as a control. Following a 16-17 hour period, mice received pretreatments of saline, ghrelin, or GHRP-6 before intragastric administration of Evans blue dye. Gastric emptying, transit, rectal temperature, and behavioral scale were assessed.

In control mice, both ghrelin and GHRP-6 accelerated gastric emptying, while transit remained unaffected. Septic mice displayed delayed gastric emptying and transit, hypothermia, and worsened behavioral scale scores. [5]

In septic mice, ghrelin accelerated gastric emptying without affecting transit, while GHRP-6 significantly accelerated gastric emptying in a dose-dependent manner without significantly impacting transit. Neither ghrelin nor GHRP-6 affected endotoxin-induced hypothermia or behavioral scale deterioration. [5]

The study suggests that the prokinetic effects of ghrelin and, particularly, GHRP-6 could offer therapeutic potential in treating septic gastric ileus.

Paradigm Peptides
At Paradigm Peptides, we carry high quality, pharmaceutical grade GHRP-6 in white powder form. Shop our tested and authenticated products today for your research needs.







Disclaimer: The GHRP-6 currently listed on this site is sold for research use only. Not for human consumption. This product is not a drug, supplement, food or cosmetic and it may not be misused, sold, labeled or branded as such. These products are not intended to diagnose, treat, or cure any condition or disease. It is not intended for human consumption, and is for research purposes only.

Weight .25 oz
Dimensions 1 × 1 × 1 in

7 grams or .3 oz


2"H x 1"W x 1"L