Pregnyl is a pharmaceutical brand name for Human Chorionic Gonadotropin (HCG) with a documented history as one of the original licensed pharmaceutical HCG preparations. Produced from the urine of pregnant women through a purification process that yields highly bioactive gonadotropin with an established clinical pharmacokinetic profile. This formulation supplies 10000IU as a single lyophilized vial, a higher concentration single unit presentation than the 5000IU per vial Hudson Science 5 pack, suited to research protocols requiring a larger per vial compound supply or examining HCG activity at higher IU concentration points in the dose response curve.

The 10000IU single vial format serves a distinct research procurement purpose from CSD’s other HCG presentations. The Hudson Science 5 x 5000IU kit provides 25000IU total across individually sealed matched batch vials suited to extended multi administration protocols. The F40 Biotech 15000IU prefilled pen provides ready to use fixed dose administration convenience. The Pregnyl 10000IU single vial provides the highest per unit IU concentration in CSD’s HCG range. Suited to research designs requiring a single high concentration HCG source, protocols examining HCG dose response relationships at the 10000IU concentration point, or researchers requiring a standalone high IU vial without committing to a multi vial kit format.

HCG’s pharmacological activity operates through direct LH receptor binding on Leydig cells in testicular tissue, stimulating endogenous testosterone production through the same receptor pathway as luteinizing hormone while bypassing the hypothalamic pituitary signaling cascade entirely. The Pregnyl pharmaceutical origin contributes a well documented clinical literature base including historical use in male hypogonadism, cryptorchidism, and fertility treatment research. A pharmaceutical research history that distinguishes Pregnyl branded HCG from research grade gonadotropin preparations and provides researchers with access to one of the most extensively characterized HCG formulations in endocrinological literature.

Every batch of CSD’s Pregnyl HCG is third party lab tested for concentration accuracy and purity before being made available, with COA documentation available on request. Canada Steroid Depot has supplied Canadian customers with consistently verified, accurately dosed compounds for years, and our HCG range across multiple formats and concentrations represents the most comprehensive gonadotropin research sourcing available from a single verified Canadian supplier. All orders ship discreetly across Canada in plain, unmarked packaging with no identifying information on the exterior.

Reconstitute with bacteriostatic water prior to use. Store lyophilized vial at 2–8°C away from direct light. Once reconstituted refrigerate and use within 30 days. Intended for research purposes only.

Commonly researched alongside SERMs and testosterone compounds in HPG axis restoration and endogenous testosterone recovery protocols. Browse CSD’s full PCT range for complete sourcing.