
Recombinant 191-aa human growth hormone for laboratory studies of growth-hormone-receptor signalling and IGF-1 axis biology.
- 1 × sealed pre-filled multi-dose research pen
- Batch / lot label with Certificate of Analysis reference
- Tamper-evident verification seal
Body Pharm Somatropin 40 (HGH)
Official Body Pharm store — genuine, batch-tested stock
Somatropin (recombinant human growth hormone, 191 aa) 40 IU supplied as a pre-filled multi-dose research pen. Used in laboratory studies of growth-hormone receptor signalling and IGF-1 axis biology. Supplied strictly for laboratory research. Not for human or veterinary use.
Research use only. For laboratory research use only. Not for human or veterinary use, diagnosis, treatment or any clinical application. This product is not a medicine, food, dietary supplement or cosmetic, and no medical, therapeutic or performance claims are made or implied. Read our research-use policy.
- HPLC-tested batch with published Certificate of Analysis
- Sealed, tamper-evident laboratory pack
- Tracked UK dispatch in plain outer packaging
Specification
- Declared quantity
- 40 IU
- CAS
- 12629-01-5
- Molecular formula
- C990H1528N262O300S7
- Format
- Pre-filled multi-dose research pen (solution)
- Storage
- Store refrigerated at 2–8 °C. Protect from light. Do not freeze.
- Intended use
- Laboratory research use only
Overview
Body Pharm Somatropin 40 (HGH) is the smaller-quantity pen in the Somatropin range: a sealed, pre-filled multi-dose research pen containing 40 IU of somatropin — recombinant human growth hormone, the 191-amino-acid polypeptide identical in sequence to pituitary-derived human growth hormone — in solution.
The pen is a laboratory research material. It is supplied strictly for laboratory research and is not for human or veterinary use. It is not a medicine, food, dietary supplement or cosmetic, and no medical, therapeutic or performance claims are made or implied. No dosing information is provided.
Research background
Recombinant somatropin is the reference ligand for the growth-hormone receptor (GHR), a class 1 cytokine receptor that signals through JAK2/STAT5 and drives hepatic IGF-1 production [1]. In the laboratory it is used in GHR binding and signalling assays, IGF-1 axis studies and preclinical models of somatotropic-axis biology [1][2]. The 40 IU and 100 IU pens contain the same compound at the same concentration; only the fill quantity differs.
Specification
- Compound: Somatropin (recombinant human growth hormone, 191 aa)
- Declared quantity: 40 IU per pen
- CAS: 12629-01-5
- Molecular formula: C990H1528N262O300S7 (MW ≈ 22,124 Da)
- Format: Solution, pre-filled multi-dose research pen
- Also available: Somatropin 100 IU
Quality documentation
Every batch is HPLC-tested for purity and identity. The batch-specific Certificate of Analysis is published on this page and on our Certificates of Analysis page, and the batch number is printed on the pen label.
Storage and handling
Store refrigerated at 2–8 °C. Protect from light. Do not freeze; do not shake (protein aggregation). Handle only with appropriate personal protective equipment in a laboratory setting and dispose of the pen as laboratory sharps waste. Keep out of reach of children and animals.
Availability
Somatropin 40 IU is currently on the waitlist. Registering your interest takes no payment; we notify you by email when the next batch is released.
Frequently Asked Questions
Is Somatropin 40 for human use?
No. It is supplied strictly for laboratory research and is not for human or veterinary use. No dosing or administration information is provided.
What is the difference between the 40 IU and 100 IU pens?
Only the fill quantity. Both contain somatropin at the same concentration with the same batch documentation.
When will the 40 IU pen be back in stock?
Join the waitlist on this page and we will email you when the next batch is released. No payment is taken to join.
References
- Brooks AJ, Waters MJ. The growth hormone receptor: mechanism of activation and clinical implications. Nat Rev Endocrinol. 2010. pubmed.ncbi.nlm.nih.gov/20664532
- Ranke MB, Wit JM. Growth hormone — past, present and future. Nat Rev Endocrinol. 2018. pubmed.ncbi.nlm.nih.gov/29449663


