Good Serum Good Source Good Traceability
Gezhe Bio's bovine sources come from large-scale intensive farms in Northeast China, East China, and Inner Mongolia. Each bag of raw serum can be traced back to the farm of each calf.
Product → Batch Production Record → Batch Number of Materials → Material Input Record → Internal Blood Bag Number → Blood Bag Number → Primary Serum Statistical Record → Cattle Ear Tag Number → Quarantine Certificate → Farm.


Quality Management System
Quality is the lifeblood of products. Since its establishment, Gezhe Bio has always put quality first. The quality management system is built in strict accordance with the
Standardized Production Ensures Product Stability and Uniformity
Gezhe Bio's serum raw materials are stable in source, large-scale production, large batches, and small batch-to-batch differences, ensuring batch stability. For the serum that has been put on the market, routine samples and long-term stability samples are kept according to the variety, batch number, and product number, and the samples are regularly observed and tested to ensure the stability of the product within the validity period.


Mature Cell Culture System Complete Multi-cell Grading
From serum raw materials to finished products, each batch is subjected to a variety of targeted cell validations to ensure the cell culture efficacy of each batch of serum products.
Fetal bovine serum product cell grading is carried out using one lymphoblastoid cell, three epithelial cell-like cells, and one fibroblast cell-like cell. The lymphoblastoid cell is used to determine the cell doubling time and peak value through the growth curve. The cell cloning rate is determined by inoculating single cells;
Three epithelial cell-like cells and one fibroblast cell-like cell are subjected to three or more continuous passages to obtain the cell proliferation concentration and compare it with the proliferation concentration of cells cultured with standard serum to obtain the relative growth efficiency; the serum is graded according to the culture effects of these five cells.
Strictly Control Transportation Risks Guarantee Product Quality
Gezhe Bio utilizes China's developed logistics system. Serum raw materials are transported from the collection point to the company, and finished serum is transported from the company to the customer, with complete cold chain delivery throughout the process, and temperature monitoring throughout the transportation process. There is no intermediate melting or turnover, ensuring that the raw materials and products are transported at the specified storage temperature.

