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Sealed research vial
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COA-backed inventory
A$229
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Certificate of Analysis
COA library
Browse the current COA library and available product documentation.
Structural class
HCG is human chorionic gonadotropin (hCG), a 244-amino acid heterodimeric glycoprotein hormone (α and β subunits) and potent LH receptor (LHCGR) agonist studied in gonadotropin axis and steroidogenesis assay models.
Pathways studied
hCG shares its α-subunit (92 residues) with LH, FSH, and TSH, but the β-subunit (145 residues, with a C-terminal extension carrying O-linked oligosaccharide chains) determines receptor selectivity for the LH/CG receptor (LHCGR). LHCGR is a class A GPCR coupling via Gs to adenylyl cyclase; cAMP/PKA signalling in Leydig cells drives StAR-mediated cholesterol import and CYP11A1-catalysed steroid synthesis, making it the standard reference agonist in Leydig cell steroidogenesis assays. In granulosa cell models, LHCGR activation by hCG triggers the LH surge equivalent, providing a controlled in vitro stimulus for luteinisation and progesterone synthesis studies. The unique O-glycosylated C-terminal extension of the β-subunit confers a substantially longer serum half-life than LH, making hCG the preferred tool in pharmacokinetic receptor-occupancy modelling.
Typical research focus
Research panels using hCG typically compare its potency and duration of LHCGR activation against native LH, recombinant LH (rLH), and truncated β-subunit analogs to map the contribution of the C-terminal glycopeptide to receptor kinetics. It is also used in germ-cell maturation, trophoblast differentiation, and early implantation signalling model systems.
For laboratory research use only. Not for human or veterinary use, and not for human consumption. Intended for in-vitro and pre-clinical research settings only.
How to read a certificate of analysis, what purity actually measures, and how research peptides are stored and independently verified.
The questions researchers ask most.
Every batch is independently tested by Janoshik Analytical. Each product links straight to the lab's own record, so you can check the exact purity figure yourself before you buy — nothing to take on trust.
Keep vials sealed, dry, and out of direct light. Lyophilised (freeze-dried) peptides are stable at -20 °C; once reconstituted, store as noted on the product label. Full handling notes sit on every product page.
Order by 2pm for same-day dispatch from our Melbourne warehouse, otherwise the next business day, with tracked delivery Australia-wide. No customs, no border delays — it's already in the country.
More in the full FAQ · Rated 4.6★ on Trustpilot
Researchers who bought HCG also stock these.
It brings together 3 labelled variants: 2000iu, 5000iu, and 10000iu, current pricing context, stock visibility, COA access, and internal links to related catalogue pages so a laboratory buyer can review the material from a single reference URL.
HCG is generally discussed as human chorionic gonadotropin (hCG), a 244-amino acid heterodimeric glycoprotein hormone (α and β subunits) and potent LH receptor (LHCGR) agonist studied in gonadotropin axis and steroidogenesis assay models. The most relevant background is sequence behaviour, pathway or receptor context where documented, and analytical consistency under controlled laboratory conditions.
Use the label, COA, and internal SOPs as the primary guide. In general, store the material under controlled laboratory conditions, minimise avoidable environmental exposure, and keep variant tracking records current.
This page links the broader COA library when a product-specific document is not attached. Laboratories should use the published documentation set that is currently available for the listing.
No. The page should be interpreted strictly in a research and laboratory context. It does not provide dosage guidance, treatment claims, or human or animal use instructions.
