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Why is fat tissue used as a source of stem cells?

Published Sep 18, 2026Updated Sep 19, 2026Last verified Sep 18, 2026Requests recorded in this site’s own server logs, with the crawler identity checked by reverse DNS or IP range.Google10First collected Sep 19, 2026Recent requestsGoogleSep 20, 2026GoogleSep 20, 2026GoogleSep 20, 2026GoogleSep 19, 2026GoogleSep 19, 2026GoogleSep 19, 2026GoogleSep 19, 2026GoogleSep 19, 2026GoogleSep 19, 2026GoogleSep 19, 2026
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Quick answer

Fat is plentiful and easy to collect by liposuction. A single procedure can produce from 100 ml to more than 3 litres of lipoaspirate. Breaking down this tissue releases the stromal vascular fraction (SVF), a mix of cells in which stem cells make up only about 2–10%. In the United States, the FDA lists fat-derived SVF among regenerative products marketed without approval, and it has received reports of serious harms linked to unapproved products.

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Answer

SVF is separated from fat either with enzymes such as collagenase or with mechanical methods. The enzyme step is one reason US regulators treat SVF as more than a minimally manipulated product [9].

Sources

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  9. journalA Simple and Effective Mechanical Method for Adipose-Derived Stromal Vascular Fraction Isolation — Cureus, via PubMed Central · accessed Sep 20, 2026 · Evidence page
  10. governmentImportant Patient and Consumer Information About Regenerative Medicine Therapies — U.S. Food and Drug Administration · accessed Sep 19, 2026 · Evidence page