A stem cell have two key functions; first cell that can replicate and recreate more stem cells of the same kind as well as differentiate to heal and repair. This means the cell can not only multiply, it can turn into different types of tissues. Second, they produce cytokines and growth factors that can regenerate tissues and reduce inflammation.

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Today, we actually have tools that allow us to separate the stem cells from fat. Because most people have adequate fat supplies and the numbers of stem cells are so great, there is no need to culture the cells over a period of days and they can be used right away.