Adult stem cells are highly concentrated in the fat tissue. There are 50 to 1,000 times more stem cells in the fat than the bone marrow. At this concentration, it is no longer necessary to culture the stem cells to acquire the necessary cell numbers to make a healing impact. The procedure to extract fat from the patient is much quicker and less invasive than a spay.
The stem cells are contained within a pool of cells in the fat termed the Stromal Vascular Fraction (SVF). The SVF may impart anti-inflammatory effects, add bioactive peptides, and contribute to reformation and architectural organization. These are benefits lost once stem cells are cultured.