Human Chorionic Gonadotropin
HCG is human chorionic gonadotropin, a longer-acting hormone signal studied in reproductive and endocrine research through the LH/CG receptor. Although HCG and HGH share an injectable presentation and the same Labbieux pricing structure, they are distinct hormones that act through different receptors and signalling pathways. HCG’s approximately 24–36-hour half-life supports the Labbieux schedule of 10 clicks two to three times per week, whereas HGH begins clearing from circulation within minutes.
Product
Research shows
Practical product identifiers and format details for professional review.
Content
30 mg
Format
Injectable
Composition
10 mg/ml per ml
Half-Life
Approximately 24–36 hours after injection
Also known as
Human chorionic gonadotropin, chorionic gonadotrophin, HCG
HCG mimics luteinising hormone activity by binding to the LH/CG receptor. In professional research, this receptor activity is studied in relation to gonadal hormone signalling and reproductive function. The glycoprotein structure slows clearance, giving HCG a much longer circulating half-life than HGH.
Explore selected publications and registered trials on HCG, with links to the original sources.
5 publications from the research library.
Evidence type
Publication and key finding
Source
Evidence type
Human randomized study
Direct HCG evidence
Publication and key finding
The study reports that treatment outcomes were lower than expected in the control group.
Reproductive biomedicine online
Evidence type
Human randomized study
Research relevant to HCG
Publication and key finding
The study reports that serum INSL3 increased with the dose of hCG administered and returned to baseline after treatment.
Fertility and sterility
Evidence type
Human clinical study
Direct HCG evidence
Publication and key finding
The study reports that corifollitropin alfa 150 μg administrated every other week combined with twice-weekly hCG for 52 weeks increased testicular volume significantly, and induced spermatogenesis in >75% of men with HH who had remained azoospermic after hCG treatment alone.
Reproductive biology and endocrinology : RB&E
Evidence type
Human randomized study
Direct HCG evidence
Publication and key finding
The study reports that neither endocrine disruption affected outcomes, with live birth rates of 12.9% versus 10.6% (OR 0.6, 95% CI 0.19 to 1.9) and 11.9% versus 17.5% (OR 1.6, 95% CI 0.79 to 3.1), respectively.
Reproductive biomedicine online
Evidence type
Human randomized study
Research relevant to HCG
Publication and key finding
The study reports that iT-T concentrations increased in a dose-dependent manner with very low-dosage hCG administration from 77 nmol/liter (40, 122 nmol/liter) to 923 nmol/liter (894, 1017 nmol/liter) in the 0- and 125-IU groups, respectively (P<0.001).
The Journal of clinical endocrinology and metabolism
5 selected studies from the wider trial library, in the order chosen for this product.
NCT01339299
NCT06684951
NCT01815138
NCT01786252
NCT00696800
Labbieux pens are designed for 30 to 31 administrations of 10 clicks. With daily use, this corresponds to approximately one month. We recommend starting with 5 clicks and building up to 10 clicks per administration. More sensitive people may use fewer clicks.
Before using our pens, consult the manual.
HCG is a biologically active gonadotropin with clinically meaningful endocrine effects. Research use requires qualified professional oversight, an appropriate indication, and monitoring tailored to the individual protocol.
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