Research explainer

What is Somatropin (HGH)?

Also known as Recombinant human growth hormone

Research use only. The summary below reflects reports in research literature. It is not medical advice or instructions for human use. Somatropin (HGH) is sold strictly for research and analytical purposes.

What is Somatropin (HGH)?

Somatropin is recombinant human growth hormone — a 191-amino-acid protein identical to the body's own GH. Supplied for research as a pre-filled multi-dose pen dialled in international units (IU) rather than milligrams.

It is studied in growth-hormone-axis, recovery and body-composition research. Research outcomes vary with dose and duration; it is supplied for laboratory research only.

Reported side effects

  • Fluid retention and joint or muscle aches — the most commonly reported effects, usually dose-dependent.
  • Numbness or tingling in the hands (carpal-tunnel-like), easing at lower doses.
  • Changes in glucose handling reported in the research literature.

How to dose Somatropin (HGH)

Dosed daily and titrated up slowly from a low start — a common research ramp is 1–2 IU daily building toward up to 4 IU. The pen is dialled in IU; no measuring or mixing.

Read the full Somatropin (HGH) dosing protocol

How to get Somatropin (HGH)

The Body Pharm Somatropin pen is a sealed, HPLC-tested device with a published Certificate of Analysis and free, discreet UK delivery. Sold strictly for research use only.

Cost per month

From £240 per pen — one pen covers a multi-week research cycle at a low daily IU dose.

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Body Pharm Somatropin 100 (HGH)

Published HPLC COA · free discreet UK delivery

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ByThe Body Pharm Research Team· Updated 22 September 2026

All Body Pharm products are sold strictly for research and analytical purposes only. Not for human consumption.