Human chorionic gonadotropin, a hormone that stimulates endogenous testosterone production via LH receptor agonism. Supplied and measured in international units (IU); no standard mass conversion.
HCG is measured in international units (IU). Add 2 mL of bacteriostatic water to a 2000 IU vial for a 1000 IU/mL solution.
| Vial size | BAC water | Concentration | 250 IU draws to |
|---|---|---|---|
| 2000 IU | 2 mL | 1000 IU/mL | 25 units |
| 5000 IU | 5 mL | 1000 IU/mL | 25 units |
| 10000 IU | 10 mL | 1000 IU/mL | 25 units |
Units are shown for a U-100 insulin syringe. A common starting dose is 250 IU. At 1000 IU/mL, that draws to 25 units on a U-100 insulin syringe.
Occupies LH receptors on testicular Leydig cells, activating cAMP-dependent signaling that drives cholesterol uptake and the enzymatic steps yielding testosterone.
HCG is commonly taken in the morning.
Add 2 mL of bacteriostatic water to a 2000 IU HCG vial for a 1000 IU/mL solution.
A common HCG starting dose is 250 IU, which at 1000 IU/mL draws to 25 units on a U-100 insulin syringe.
Draw bacteriostatic water into a syringe, inject it slowly down the inside glass of the HCG vial (not onto the powder), and swirl gently until clear. Store refrigerated and use within the common window.