Quick answer
Fat tissue contains roughly 2.0% stem cells versus about 0.002% in bone marrow — a thousandfold difference. That density is the main reason Cheongdam The Cell bases its regenerative programmes on adipose-derived cells. Fat is also harvested under local anaesthesia with less pain and faster recovery, and being autologous it carries no rejection risk.
The limits of bone marrow harvesting
Bone marrow harvesting is the older clinical route, but it has two limits: it requires a bone puncture with heavier anaesthesia, and the mesenchymal stem cell content per volume is very low, so either large volumes or laboratory expansion is needed.
Why fat is easier and richer
Subcutaneous fat delivers a large number of cells from a modest volume. The harvest takes about 30 minutes under local anaesthesia, and because the yield is sufficient the same day, SVF can be isolated and reinjected immediately without a culture wait — practical for international patients on a short stay.
Multi-lineage differentiation
Adipose cells also proliferate quickly and can differentiate along several lineages — cartilage, bone, fat and vascular-related cells — which is why joint, skin and chronic-wound research so often uses this source.
Individual variation you must measure
The honest caveat: stem cell density in fat varies between individuals. Older patients, smokers and people with chronic inflammation typically yield fewer and lower-quality cells, so a pre-treatment assessment and an actual cell count matter more than any average printed in a brochure.
Last updated: 2026-08-28 · This content is for information only and is not medical advice. Consult a qualified doctor before making treatment decisions.