GHRP-6 acetate is a synthetic growth hormone (GH) secretagogue and an agonist of the GH secretagogue receptor (GHS-R), which is also known as the ghrelin receptor. It inhibits binding of the GHS-R agonist MK-0677 (Ibutamoren) to COS-7 cell membranes expressing human GHS-R type Ia and binding of ghrelin to COS-7 cells expressing human GHS-R. GHRP-6 stimulates intracellular calcium mobilization in BHK cells expressing the human receptor and inositol phosphate production in COS-7 cells expressing the human receptor. It also acts as a negative allosteric modulator of ghrelin signaling. GHRP-6 induces release of GH, but not thyroid-stimulating hormone (TSH), luteinizing hormone (LH), or follicle-stimulating hormone (FSH), in isolated rat pituitary gland. It increases levels of GH, but not TSH, LH, FSH, or prolactin, in rat blood when administered subcutaneously at a dose of 50 μg. GHRP-6 increases food intake in rats when administered intracerebroventricularly at 0.3, 1, and 3 nmol.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.