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GMP Grade Cytokines - Buy 1, Get 1 Free until December 2026

Receive 50% Off your first high-throughput antibody expression project - Mammalian and cell-free expression available.

☀️ Our Summer Surprise starts today! To celebrate the summer season, we're treating our customers in Germany and Austria to a little extra. From today until the end of July, every direct catalog order comes with a surprise gift. Simply mention "Summer Surprise" when placing your order to take part in the campaign or contact Amir Mofidi, PhD, Shao-Yen K. or Peter Bou Dib, PhD. We look forward to supporting your research this summer!

When you’re pushing a therapeutic toward the clinic, every variable matters. With ProPure endotoxin-free proteins from Sino Biological Europe, you remove LPS-driven immune artifacts and aggregation risks. Generated via rigorously controlled bioprocessing at our Texas C4B site, these ready-to-use reagents help you generate cleaner, more translatable data—faster.

How much of your assay noise is actually endotoxin? With ProPure Platform proteins, you use recombinant reagents manufactured from endotoxin-free plasmids and advanced filtration systems, delivering <0.05 EU/mg endotoxin levels. You gain cleaner readouts and fewer false immune responses in your most sensitive systems.

Your most sensitive assays deserve more than “good enough” reagents. With ProPure endotoxin‑free recombinant proteins from Sino Biological Europe, you work with <0.05 EU/mg purity, manufactured at our Texas C4B facility. Reduce LPS‑driven immune artifacts and generate more reliable data for immunology, vaccine, and cell & gene therapy programs.