hCG
Also known as Human chorionic gonadotropin · Pregnyl · Novarel
New
Reconstitution & dosing guide
2000 mg · 5000 mg · 10000 mg vial sizes — research phases, recon steps, and a live unit calculator.
Available sizes & price
Catalog only10000iu x 10 vials
HCG (G10K) · Not in current stock
$60 / vial
2000iu x 10 vials
HCG (G2K) · Not in current stock
$25 / vial
5000iu x 10 vials
HCG (G5K) · Not in current stock
$35 / vial
Prices per vial · Research use only · Not medical advice.
Glycoprotein hormone used in fertility and TRT adjunct settings; endocrine staple in men’s health clinics.
How to picture it
HCG is a structural cousin of LH. It occupies LH receptors on the gonads — telling testes to make testosterone (and support certain fertility steps) or acting on ovarian LH receptors depending on context. Picture a spare key that opens the same LH door: receptor-level support of the gonadal conversation when endogenous LH is low, without inventing a new pathway.
Research focus & benefits
- LH-receptor agonist research and clinical fertility use
- Gonadal signaling support studies
- Axis and hypogonadal research contexts
Benefits describe research interest and pathway rationale — not guaranteed outcomes or medical advice. Research use only.
Overview
hCG mimics LH, stimulating testicular testosterone and sperm production pathways. It is FDA-approved for specific reproductive indications and widely used in men’s health to maintain testicular function during testosterone therapy. Famous past misuse in hCG diet scams.
Mechanism
LH receptor agonism in gonadal tissue.
Research uses
- Female and male fertility treatments
- Hypogonadism adjunctive therapy
- Cryptorchidism (historical pediatric use contexts)
Research dosing notes
Clinic-directed IU dosing. Diet-only hCG protocols are not evidence-based for fat loss.
Half-life / kinetics
Hours to a day-scale depending on route/product
Common research routes
Reported considerations
- Gynecomastia risk via aromatization cascade
- Injection reactions
- Mood changes
- Ovarian hyperstimulation in female fertility care
Contraindications / cautions
- Hormone-sensitive cancers
- Precocious puberty contexts
- Pregnancy (unless part of fertility care)
- Thromboembolism risk assessment
Common research stacks
- Testosterone cypionate (TRT clinics)
- FSH in fertility protocols
- Kisspeptin research contexts
Legal / access note
Approved for specific indications. FDA has acted against over-the-counter hCG diet products. Pharmacy compounding rules apply.