GenSci

GenSci products, particularly Jintropin, are equipped with one of the most sophisticated security systems in the industry. Each kit features a fibertrust security label with unique fibers and a security code. You can verify your product by visiting the official GenSci verification website and entering the serial number to ensure it is a genuine pharmaceutical-grade product.

Yes. Unlike many research-only labs, GenSci is a fully licensed biopharmaceutical manufacturer. Their production facilities are GMP (Good Manufacturing Practice) certified, ensuring that every peptide and hormone produced meets the highest clinical standards for purity, stability and safety.

GenSci utilizes advanced E. coli expression systems and high-standard purification technologies. Their products typically maintain a purity level of 99% or higher, with virtually zero presence of truncated sequences or bacterial proteins, which minimizes the risk of antibody formation during long-term research.

GenSci uses proprietary freeze-drying (lyophilization) technology that ensures the molecular structure of the peptide remains intact even without constant cold-chain logistics for short periods. Their vacuum-sealed vials are designed to preserve the biological activity of the hormone for up to 24 months when stored correctly.

To maintain maximum potency:

• Unopened Vials: Store in a refrigerator between 2°C and 8°C. Protect from direct light.
• Reconstituted Solution: Once mixed with the provided solvent, the vial must be kept refrigerated and used within the specific stability window (usually 72 hours to 20 days depending on the specific product and solvent used).