HCG is supplied in a high-potency 10000IU / 3ml pre-filled research pen – the gold-standard glycoprotein hormone used in laboratory studies of luteinizing hormone (LH) receptor signaling, steroidogenesis, gonadal function maintenance, and hypothalamic-pituitary-gonadal (HPG) axis dynamics. Consequently, this preparation allows for precise and reproducible studies across a variety of experimental models. Explore complementary fertility research compounds such as HMG 75IU Pen or HGH 100IU Pen for synergistic HPG axis studies.

Human Chorionic Gonadotropin (HCG) Overview

Human Chorionic Gonadotropin (HCG) is a heterodimeric glycoprotein hormone structurally and functionally analogous to pituitary LH. Moreover, it binds with high affinity to the LH/CG receptor (LHCGR), stimulating adenylate cyclase, cAMP production, and downstream activation of cholesterol transport (StAR protein) and steroidogenic enzymes. As a result, it leads to robust testosterone, progesterone, and estrogen synthesis in gonadal tissues. For detailed receptor and signaling information, see NCBI – LHCGR Signaling.

Core Research Applications

HCG is widely applied in experimental endocrinology and reproductive biology. For example:

• Direct stimulation of Leydig cell testosterone production in male models (mimicking LH surge)
• Maintenance of testicular size, function, and intratesticular testosterone levels during exogenous androgen or suppression studies
• Investigation of spermatogenesis support and prevention of germ cell apoptosis in hypogonadal or suppressed states
• Induction of ovulation, corpus luteum formation, and progesterone secretion in female reproductive models
• Studies on HCG as a marker in oncology (trophoblastic tumors, germ cell cancers) and pregnancy-related endocrinology
• Exploration of desensitization/resensitization kinetics of LHCGR under chronic or pulsed exposure
• Synergistic protocols with HMG, GnRH analogs, or SERMs in fertility, endocrine recovery, and reproductive axis research

Dosage and Experimental Considerations

The 10000IU strength in a 3ml pen provides substantial capacity for single high-dose protocols, multi-dose experiments, or longer-term HCG administration studies. Additionally, HCG’s biological half-life of approximately 24–36 hours supports flexible dosing schedules. Therefore, researchers can design both acute and chronic experimental models with confidence in reproducible hormone exposure. For pharmacokinetics and clinical reference, see HCG Pharmacology Overview.

Product Highlights

• Pharmaceutical-grade purity HCG (>98% – third-party bioactivity & HPLC verified)
• Sterile, ready-to-use pre-filled pen injector – precise IU delivery and exceptional laboratory convenience
• High-potency 10000IU format for efficient handling of demanding research protocols

What’s Included

• Reusable precision peptide pen injector
• Pre-filled HCG solution (10000 IU / 3ml)
• Detailed usage instructions
• 10 sterile, single-use needles

For laboratory research use only. Not for human consumption.