recombinant growth hormone · dosed in IU
somatropin, in research terms
Also known as recombinant human growth hormone, rhGH.
Somatropin is recombinant human growth hormone (rhGH) — growth hormone itself, produced by recombinant expression. Unlike the secretagogues in this range, it supplies GH directly rather than stimulating the pituitary to release it.
what it is
Somatropin is recombinant human growth hormone — the GH molecule supplied directly. It is the exogenous-GH end of the growth-hormone axis, as opposed to the secretagogue end represented by tesamorelin and the CJC-1295 + Ipamorelin combination.
why it is dosed in IU
Somatropin is quantified in international units (IU) rather than milligrams, reflecting how recombinant GH is standardised. That makes correct identity and concentration data on the certificate of analysis especially important — the IU presentation leaves no room for ambiguity about what is in the pen. The click calculator handles the IU-per-click maths for the somatropin pen.
direct supply vs stimulated release
The research distinction is straightforward: somatropin provides a direct, exogenous supply of GH, whereas secretagogues drive the body's own endogenous, pulsatile release. Studies choose between them based on whether the natural release rhythm needs to be preserved or bypassed.
verifying identity and purity
Every somatropin research pen ships with an independent, batch-specific certificate of analysis confirming identity and content. Given the IU presentation, verify the batch before any research use — see how to read a COA.
research use only
This compound is supplied strictly for in-vitro and laboratory research use only. It is not a medicine, is not for human or veterinary consumption, and nothing on this page is dosing, medical or treatment guidance. Any effect described is stated in the context of published research, not a claim about use.
where to find Somatropin
Somatropin is supplied in the following research pens — pre-filled, batch-numbered and independently assayed. Save one to your list and we'll email you the moment it's available in your country.
