Sermorelin, also known as GHRH (1-29), is a growth hormone-releasing hormone (GHRH) analogue used as a diagnostic agent. It is a 29-amino acid polypeptide representing the 1–29 fragment from endogenous human GHRH, and is thought to be the shortest fully functional fragment of GHRH.[1] It is used as a diagnostic agent to assess growth hormone (GH) secretion. It is also used as doping agent in sports due to its correlation with increased growth of muscular and skeletal tissue.[citation needed] Sermorelin use is also hypothesized to improve deep rapid eye movement sleep.

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.