Medium promotes robust cell culture, growth & proliferation and contains added supplements optimized to the unique requirements of each cell type. For researchers wanting to control the timing and/or amount of supplements added, Cells Online offers popular and cost-effective specialty cell culture Medium Kits. Our Growth Medium Kits consist of basal medium and respective growth supplement sold together, packaged separately. Basal Medium is also used when cells do not require supplementation for a certain part of an experiment, to limit cell growth, or to extend product shelf life. Growth Supplements include growth factors, cytokines and nutrients added to basal medium to make complete growth medium. Kits are also available for non-proliferating cells like neurons and blood cells with the same approach: Basal Medium and Culture Supplements sold together, packaged separately.