Extem collects and purifies mesenchymal stem cells from adult bone marrow. Their donors are free from HIV-1, hepatitis B, hepatitis C and other infectious diseases. Their method for MSC expansion generates large volumes of cells at an early passage. Cells are continuously monitored to ensure the highest quality cells upon arrival at your lab. Cells are tested for CD markers, viability, and differentiation capacity, and free from microbial and yeast contamination.