Back to all peptides

hCG

A glycoprotein hormone peptide—not a small peptide—used medically for fertility and sometimes TRT adjunct.

hCG illustration
Reading ingredients on a skincare label

Spotted this on a label?

hCG

That’s the INCI name—the official way it appears on the back of your serum or cream. Same ingredient, different marketing names.

Structure (cute edition)

Simplified amino acid chain for hCG
2D chemical structure from PubChem ✨ real molecule sketch

This peptide is a short chain of about 4 amino acids—think of it as a tiny protein necklace on your label.

INCI: hCG · ~4 amino acids in our simplified view

What brands say it does

hCG mimics LH and stimulates testosterone production and testicular size. FDA-approved for fertility; controversial in weight-loss and TRT protocols. Distinct from GH secretagogues; requires injection and monitoring.

Where you’ll find it

Fertility clinics, TRT practices, and historically fad diet clinics.

Other names you might see

Human chorionic gonadotropin Pregnyl Gonadotropin

Educational only—not medical advice. We do not sell peptides. Unregulated research chemicals carry serious purity and legal risks.