HCG (Human Chorionic Gonadotropin)
Research Grade
HCG stands for Human Chorionic Gonadotropin. It is a glycoprotein hormone. Researchers study it for its role in the LH receptor pathway. It is structurally similar to LH (luteinizing hormone). So it binds the same receptors in lab models.
The molecular formula is a two-subunit alpha-beta heterodimer. The alpha subunit shares structure with FSH, LH, and TSH. The beta subunit is HCG-specific. Combined molecular weight sits around 36–40 kDa depending on glycosylation.
Is HCG(GK) tested for purity?
Yes. Every batch we stock goes through third-party testing at Janoshik Analytical. No exceptions.
Our current lot tests at 99.36% purity. The COA is available on request. Also, we upload batch results directly to globalpeptidesofficial.com so you can verify before ordering.
What form does it come in and how do you store it?
HCG arrives as a lyophilized (freeze-dried) powder. This is the most stable form for long-term research storage. First, keep it at −20°C before reconstitution. Next, once reconstituted, store at 2–8°C and use within a standard research window.
However, avoid repeated freeze-thaw cycles. Each cycle can degrade bioactivity. Therefore, aliquot before freezing if your protocol requires multiple uses.
Why do researchers choose HCG from globalpeptidesofficial.com?
Simple. COA-backed purity. Fast dispatch. No filler claims.
Also, we don’t batch-swap without notice. What you order is what Janoshik tested. Finally, researchers appreciate that we publish actual lab data not marketing numbers.
Visit globalpeptidesofficial.com to view current batch documentation before placing an order.
How is HCG used in research models?
HCG is primarily studied in the context of LH receptor biology. Researchers use it in in vitro and in vivo models to examine gonadal steroidogenesis. It is also studied in reproductive biology, including ovulation induction pathways in animal models.
So common research applications include: testosterone production signaling in Leydig cell models, ovarian response studies, and LH receptor binding assays. But always follow your institutional ethics and compliance guidelines.
Product Specifications
| Name | Human Chorionic Gonadotropin (HCG) |
| Type | Glycoprotein hormone — alpha/beta heterodimer |
| Form | Lyophilized powder |
| Purity | 99.36% (Janoshik verified) |
| Molecular weight | ~36,000–40,000 Da (glycoprotein) |
| Storage (sealed) | −20°C, protect from light |
| Storage (reconstituted) | 2–8°C, use promptly |
| Reconstitution | Bacteriostatic water (standard lab protocol) |
| COA | Available Janoshik third-party batch testing |
| Intended use | Research purposes only |
| Supplier | globalpeptidesofficial.com |







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