Our MEM Vitamin Mix contains vitamins from the classic Minimum Essential Medium (MEM) in 100-fold concentration. Vitamins are essential nutrients. They serve as cofactors for many enzymes and catalyze metabolic processes in the cell. As cells cannot produce enough of these themselves, our MEM vitamins serve as a supplement for cell culture. The additional vitamin pool serves to increase the viability of fast-growing cells in particular. A lack of vitamins leads to reduced proliferation or apoptosis of the cells.