Gonadotropin & endocrine peptides
This range holds the references used in reproductive and endocrine signalling research: kisspeptin, the KISS1 gene product acting at GPR54; gonadorelin, the synthetic decapeptide identical to endogenous GnRH; and gonadotropin preparations such as HCG and HMG, together with oxytocin.
These compounds are standard comparators in receptor-binding and pituitary-response assays, where an accurately quantified reference matters more than anything else. Every product has undergone independent purity and identity testing.
Gonadotropin & Endocrine catalogue

ACTH 1-39
Full-length adrenocorticotropic hormone reference for MC2R signalling research.

EPO 3000iu
Erythropoietin reference used in erythroid-progenitor and cytoprotection research.

Gonadorelin
GnRH decapeptide reference used in hypothalamic-pituitary research.

HMG
Human menopausal gonadotropin reference used in gonadotropin-receptor research.

Kisspeptin
GPR54 agonist reference used in HPG-axis and reproductive research.

Oxytocin
Nonapeptide neurohormone reference used in receptor-binding assays.

VIP
28-mer neuropeptide reference used in VPAC-receptor and secretion research.


Melanotan II
Cyclic melanocortin agonist reference used in receptor pharmacology research.

PT-141
Cyclic melanocortin-4 agonist reference used in receptor pharmacology research.
Gonadotropin & Endocrine, answered
- How are IU-based references such as HCG and HMG quantified?
- Gonadotropin preparations are quantified in international units rather than by mass. Representative product documentation shows the stated activity and identity-testing information where available.
- Has every endocrine research product been independently tested?
- Yes. Every product has undergone independent HPLC and LC-MS testing, and certificates of analysis are available to view on the relevant product pages.
- How quickly are orders dispatched?
- Orders that clear payment before the daily cut-off are typically dispatched within 24 hours from the UK, with tracked delivery to the United Kingdom and the European Economic Area countries we serve.
- Can these compounds be used on humans or animals?
- No. Everything in this range is an unlicensed reference standard supplied for in-vitro laboratory research by qualified professionals only. Nothing we sell is a medicine, supplement or cosmetic.

