Research Overview · Research Use Only

HGH: research overview

HGH (human growth hormone), also called somatropin, is the full growth-hormone protein rather than a fragment or secretagogue. It is the reference point that the growth-hormone research peptides are usually compared against.

What is HGH?

HGH is a recombinant form of the growth-hormone protein produced naturally by the pituitary gland. Where secretagogues like ipamorelin or GHRH analogs like CJC-1295 act on the pathway that signals growth-hormone release, HGH is the hormone itself, which is why it is studied as a baseline in growth-hormone research.

Understanding IU vs. mg

HGH is often measured in international units (IU) rather than milligrams. Research vials list a potency such as 12 IU. When reconstituting, the bacteriostatic water volume still sets the concentration, but the label unit is IU, so it is important to note whether a protocol references IU or mg.

Forms & handling in the lab

HGH ships as a lyophilized (freeze-dried) powder, commonly in vials rated by international units such as 12 IU. Before use it is reconstituted with bacteriostatic water; because HGH is measured in IU, keep the vial potency in mind when preparing your solution. It is particularly sensitive, so add water gently and avoid shaking.

Storage & stability

• Lyophilized powder - most stable form; keep frozen or refrigerated and protected from light until reconstituted.
• Reconstituted solution - refrigerate at roughly 2-8 °C; as a general research guideline, use within about 28 days.
• Avoid repeated freeze-thaw cycles, heat, and shaking, which can degrade the compound.

Frequently asked questions

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