Question 1

What is hCG?

Accepted Answer

Human chorionic gonadotropin is a placental glycoprotein hormone composed of a 92-amino-acid alpha subunit (shared with LH, FSH, and TSH) and a distinct 145-amino-acid beta subunit, joined non-covalently and heavily glycosylated. It acts as an agonist at the luteinizing hormone/choriogonadotropin receptor (LHCGR), mimicking the LH surge. In females it sustains the corpus luteum and progesterone production in early pregnancy and triggers final oocyte maturation and ovulation; in males it stimulates testicular Leydig cells to produce intratesticular testosterone, supporting spermatogenesis. hCG is FDA-approved (e.g., Pregnyl, Novarel, recombinant Ovidrel) for ovulation induction, assisted reproduction, and male hypogonadism/cryptorchidism. Merit Verified tracks independent COA test results for hCG from multiple vendors.

Question 2

Which vendors sell hCG with independent COA testing?

Accepted Answer

3 vendors in the Merit Verified directory have independent COA evidence on file for hCG — 11 COAs total. COA coverage and test dates are listed on the hCG page at https://meritverified.org/peptides/hcg.

Question 3

How do I verify the quality of hCG from a vendor?

Accepted Answer

To verify hCG quality, look for an independent certificate of analysis (COA) from a third-party lab — not a lab the vendor owns or pays directly. The COA should state the tested compound, lot number, purity percentage (identity and concentration), and the lab's name. Cross-reference the lot number against the vendor's current stock. Merit Verified indexes COAs for hCG at https://meritverified.org/peptides/hcg so you can compare evidence across vendors before buying.

hCG

Pricing for hCG

COAs for hCG