Founded in 1989,Invigentech in the United States is the main producer of the international serum-free cell culture medium DMEM/F12. It has more than 30 years of fetal bovine serum, serum-free cell culture medium, stem cells, immune cells, and tumor cells. Experience in the production of serum-free culture media for different types of mammalian cells; it is also one of the largest OEM suppliers of fetal bovine serum and serum-free medium in the world; each batch of serum has a complete blood source certificate, veterinary inspection certificate and quality Test report; Invigentech serum is manufactured and produced in a fully automatic manner in a 100-level sterile room, with good reproducibility and traceability.