HCG

FDA Approved

Human Chorionic Gonadotropin

Category: Sexual Health
Aliases: hCG, Pregnyl, Novarel
Administration: Subcutaneous injection, Intramuscular injection

Documented benefits

Tier 1 · Peer-reviewed / regulatory

Benefit categories

Reproductive Hormone & Sexual Function

Sexual Health

HCG's defining research application — one of the most well-established, FDA-approved hormones used in reproductive and hormonal medicine.

Natural testosterone boost

Directly stimulates testosterone production at the testes, distinguishing it from peptides like Kisspeptin-10 or Gonadorelin that work further upstream.

Reproductive support

Its core, defining mechanism — mimicking LH directly at the testes or ovaries rather than triggering the pituitary to release LH itself.

Hormonal balance

Widely used specifically to keep the reproductive hormone system active and balanced during testosterone replacement therapy, when the body's own LH production is otherwise suppressed.