ZPHC HP-HCG 5000 IU

HP-hCG ZPHC — 5 000 IU (1 lyophilized vial)

ZPHC HP-HCG 5000 IU is a high-purity (HP) lyophilized parenteral formulation delivering 5000 International Units of Human Chorionic Gonadotropin (HCG) per vial. As a heterodimeric glycoprotein hormone consisting of non-covalently bound $\alpha$ and $\beta$ protein subunits, HCG shares structural homology with pituitary Luteinizing Hormone (LH) and exhibits targeted agonist binding at the G-protein-coupled transmembrane LH/hCG receptor.

Upon binding to target receptors on Leydig cells, HCG triggers the intracellular activation of adenylate cyclase, increasing cyclic AMP (cAMP) concentrations. This downstream signal transduction drives the Steroidogenic Acute Regulatory (StAR) protein-mediated transport of cholesterol to the inner mitochondrial membrane, converting it to pregnenolone to maintain endogenous intratesticular steroidogenesis.

Manufactured by Zhengzhou Pharmaceutical Co., Ltd. (ZPHC) under cGMP standards, each vial is freeze-dried under controlled vacuum conditions to ensure protein structural stability and biological potency.

Mechanism of Action:

Human Chorionic Gonadotropin (hCG) mimics the luteinizing hormone (LH) in the body, which is responsible for signaling the testes to produce testosterone. By stimulating the Leydig cells in the testes, hCG effectively boosts natural testosterone production. This is particularly important during or after anabolic steroid cycles when natural hormone production may be suppressed. HP-hCG helps maintain testicular size and function, ensuring that users do not suffer from prolonged periods of low testosterone.

Product Features:

• Potency: 5000 IU per vial
• Presentation: 1 vial per pack, ideal for cycle support
• Composition: Pure hCG for consistent and effective results
• Stability: High-quality formulation ensures potency and stability during storage
• Usage: Suitable for both intra-cycle testicular maintenance and post-cycle therapy (PCT)

Key Benefits:

• Restores Testosterone Production: Helps restart natural testosterone production post-cycle.
• Prevents Testicular Atrophy: Helps maintain testicular size and function during steroid use.
• Improves Recovery: Facilitates quicker recovery post-cycle by ensuring hormonal balance.
• Supports Fertility: May also be used to support fertility in men by stimulating sperm production.

Recommended Use:

HP-hCG 5000IU is typically administered via intramuscular or subcutaneous injection. The dosage and frequency of administration will depend on the specific needs of the user, often ranging from 500 to 1000 IU every other day. Always consult with a healthcare provider to determine the correct dosage and administration schedule for your individual needs.

Side Effects:

The potential side effects of HP-hCG can include:

• Mild Side Effects: May include headache, irritability, or mild swelling at the injection site.
• Serious Side Effects: Rarely, some individuals may experience an allergic reaction, characterized by rash, itching, or swelling. Seek medical attention if these symptoms occur.
• Overstimulation: In some cases, overuse of hCG can lead to overstimulation of the testes, causing discomfort or other complications. Always use as directed.

Contraindications:

HP-hCG should not be used by individuals with a history of prostate cancer, breast cancer, or any other hormone-sensitive conditions. It is also contraindicated for individuals who are allergic to hCG or any of its components. Always consult with a healthcare provider before starting hCG to ensure it is safe based on individual health conditions.

Storage Note: Unreconstituted lyophilized vials must be kept under refrigerated cold-chain conditions (2°C to 8°C). Protect strictly from light exposure and thermal extremes. Post-reconstitution, store solution continuously under refrigeration (2°C to 8°C) and utilize within the designated stability window. Do not freeze.

Product Attribute Table

Attribute	Specification
Manufacturer / Brand	ZPHC (Zhengzhou Pharmaceutical Co., Ltd.)
Product Name	HP-HCG
Active Substance	High-Purity Human Chorionic Gonadotropin (HP-HCG)
Structure	Heterodimeric Glycoprotein ($\alpha$ and $\beta$ subunits)
Dosage / Concentration	5000 IU per vial
Form	Lyophilized Powder for Reconstitution
Compound Category	Gonadotropin / LH Receptor Agonist
Storage Requirements	Refrigerated Cold-Chain (2°C – 8°C). Protect strictly from light and heat. Do not freeze