2026-09-03
PRP Fat Grafting vs. Stem Cell Fat Grafting: Which Lasts Longer? Differences in Engraftment Rate and Duration
This article compares PRP fat grafting and stem cell fat grafting, discussing their engraftment principles, differences, key factors influencing duration, and how to choose the most suitable option for long-lasting results.
※ This article is intended to provide medical information.
It is not subject to deliberation under Article 56, Paragraph 2 and Article 57 of the Medical Service Act,
and is not an advertisement unrelated to the content of deliberation.
Hello,
I am Dr. Park Jeong-geun,
Director of Face Plus Plastic Surgery Clinic.
As facial volume diminishes, people often compare
PRP fat grafting and stem cell fat grafting.
While both are based on fat grafting, the actual
results and duration vary depending on the approach.
The difference lies not simply in ‘lasting longer’ but in how the engraftment rate is enhanced,
and the selection criteria can also vary depending on the individual's tissue condition and treatment goals.
Table of Contents | ||
1. Principle of PRP Fat Grafting Engraftment 2. Differences in Stem Cell Fat Grafting 3. Key Variables Affecting Duration 4. Which Option is More Advantageous |
1. Principle of PRP Fat Grafting Engraftment
PRP involves injecting concentrated growth factors from the patient's own blood along with fat.
These growth factors help create a stable initial engraftment environment by promoting blood vessel formation and tissue repair.
However, if the quality of the fat itself or the injection method is not adequate, PRP alone will not significantly alter the engraftment rate.
In other words, it plays a supportive role, but it is meaningful in reducing the initial absorption rate,
and is used as a relatively low-burden method.
2. Differences in Stem Cell Fat Grafting
Stem cell fat grafting involves injecting stem cells extracted from fat along with the fat to enhance fat cell survival.
Stem cells are known to actively induce blood vessel formation and tissue regeneration, thus generally leading to a higher engraftment rate.
This can be particularly advantageous for areas where repeated procedures are difficult or when stable results are desired in a single session.
However, clear differences in results also depend on the fat harvesting condition and injection technique,
and simply adding stem cells does not solely determine the outcome.
3. Key Variables Affecting Duration
The duration of the results depends less on whether PRP or stem cells are used, and more on how much fat actually survives.
How the fat is harvested, whether it is purified without damage, and how much is injected into which layer significantly influence the results.
Generally, engrafted fat is maintained semi-permanently, but there is a process of partial absorption during the initial 3-6 months.
How stably this period is managed determines the difference in duration,
and excessive injection or unbalanced distribution can actually increase absorption.
4. Which Option is More Advantageous
Stem cell fat grafting is theoretically advantageous for increasing the engraftment rate,
but it does not necessarily produce better results in all cases.
PRP fat grafting can also achieve sufficiently stable results if the basic fat processing and injection techniques are accurate.
Ultimately, what is important is not which method is chosen, but the process of minimizing fat damage and properly creating an engraftment environment.
The approach should vary depending on the individual's skin condition, required volume, and desired level of results in a single session,
and when these criteria are met, natural and long-lasting results are achieved.
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PRP Fat Grafting
Frequently Asked Questions
What is the principle of engraftment in PRP fat grafting?
PRP fat grafting involves injecting concentrated growth factors from the patient's own blood along with fat. These growth factors help create a stable initial engraftment environment by promoting blood vessel formation and tissue repair, which is significant in reducing the initial absorption rate.
What is the difference between stem cell fat grafting and PRP?
Stem cell fat grafting involves injecting stem cells extracted from fat along with the fat to enhance fat cell survival. Stem cells are known to actively induce blood vessel formation and tissue regeneration, thus generally leading to a higher engraftment rate.
What factors influence the duration of fat grafting results?
The duration of fat grafting results depends on how much fat actually survives. Key variables include how the fat is harvested and purified, how much is injected into which layer, and the management of the absorption process during the initial 3-6 months.
Which method, PRP or stem cell fat grafting, lasts longer?
It is difficult to definitively state which method lasts longer. The duration depends less on whether PRP or stem cells are used, and more on the process of minimizing fat damage and properly creating an engraftment environment. Engrafted fat can be maintained semi-permanently.
How long does engrafted fat last after fat grafting?
Generally, engrafted fat is maintained semi-permanently. However, there is a process of partial fat absorption during the initial 3-6 months after the procedure, so how stably this period is managed affects the final duration of the results.
What is the most important criterion when choosing a fat grafting procedure?
The most important factor is not which method is chosen, but the process of minimizing fat damage and properly creating an engraftment environment. The approach should vary depending on the individual's skin condition, required volume, and desired level of results.