Human chorionic gonadotropin

What is Human chorionic gonadotropin?

Human chorionic gonadotropin (hCG) is a glycoprotein hormone normally produced by the placenta. Medicines use its LH-like activity in specific fertility and hormonal settings, including final egg maturation. 1 3

How it works

hCG activates the LH receptor. Depending on the tissue and clinical setting, this supports final follicular maturation or testicular testosterone production. 3

Effects studied

Fertility-treatment outcomes

Clinical studies compare hCG preparations within assisted-reproduction protocols. Triggering maturation is one stage and does not guarantee pregnancy or live birth.

Evidence: Protocol-specific comparative evidence. 1

Weight loss

A fertility or hormonal indication does not support marketing hCG as a weight-loss treatment.

Evidence: FDA consumer information retained in the source record. 2

What does the evidence show?

Fertility evidence and regulator reference lead

From pregnancy hormone to fertility medicine

hCG is produced in pregnancy and helps support early hormonal conditions needed to maintain it. As a medicine, its activity at the LH receptor can also be used to trigger final egg maturation or stimulate testicular testosterone production in selected clinical situations.

The full protocol determines the outcome

In fertility treatment, hCG is one component of a timed sequence. It does not by itself establish egg quality, successful fertilisation or a live birth. Urinary-derived and recombinant preparations also have their own product information, so an ingredient-level description cannot replace a protocol-specific assessment. 1

Why the weight-loss claim does not follow

Changing reproductive signalling is not evidence of a useful fat-loss effect. The archive includes an FDA reference addressing hCG products marketed for weight loss. A programme that combines hCG with extreme calorie restriction cannot attribute weight change to the hormone without an appropriate comparison. 2

The reproductive effects create real risks

In ovarian stimulation, excessive response and ovarian hyperstimulation syndrome are important concerns. Other effects depend on the patient and purpose, including changes in sex-hormone levels and fluid balance. These risks require a defined treatment plan. The reproductive uses do not establish hCG as a general-purpose peptide or dieting aid. 3

Safety & status

Ovarian hyperstimulation and other hormone-related effects are relevant in fertility care. Fluid retention and the surrounding stimulation regimen also affect safety. 3

Country and product status

Product indications and availability vary by country; current EU and Swiss status has not been independently checked for this draft.

Frequently asked questions

Are urinary and recombinant hCG identical products?

They provide a related hormonal action but are distinct preparations with their own instructions and comparative evidence. 1

Is hCG an evidence-based weight-loss aid?

The fertility and endocrine uses described here do not justify that claim; the retained FDA reference addresses misleading weight-loss products. 2

Sources

This entry was rewritten from our research archive. References below are reading leads unless a completed check is explicitly noted; a full independent evidence and regulatory review is still pending.

Retained paper reference Archive research lead · Retained archive reference; not independently checked for this draft
Retained source reference Archive research lead · Retained archive reference; not independently checked for this draft
Retained source reference Archive research lead · Retained archive reference; not independently checked for this draft

Research provenance

This name was discovered in the Superpower peptide index, archived 26 October 2026. Its ratings and reviewer attribution have not been adopted as our own. The archive informed this original editorial draft; independent source review is still pending.