Not about how many we move,
but making every follicle count
When extensive hair loss calls for moving a large number of follicles at once, what matters is not how many hairs are implanted but how many transplanted follicles survive. Motential performs large-volume transplants with fully non-incision FUE, focusing on just one patient a day.
That is why who does it, and how, is everything.
Hello, I am Dr. Injae Lee of Motential, Cheongdam.
In practice, I often meet patients whose crown and front have thinned together and who need a large volume moved in one session. Many ask me to implant as much as possible at once. I completely understand. But to get straight to the point: in large-volume transplantation, what truly matters is not the number implanted but the number that survives.
The follicles in the donor area (back of the head) are a finite resource. Once taken, they are never replenished. So rather than pushing extraction volume, my principle is to move exactly what is needed, without waste, to where it looks most natural.
— Dr. Injae Lee, Director
What is a large-volume hair transplant (megasession)?
A procedure that moves a large number of follicular units in a single surgery is commonly called a megasession. It typically refers to transplanting about 3,000–6,000 follicular units in one session, and is considered for extensive hair loss — Norwood stages 5–7, where a wide area needs to be covered at once.
In a hair transplant, the relocated follicles connect to new blood vessels over 4-7 days in a process called graft survival. Only the follicles that complete this process well will grow for life. In other words, the more grafts you move at once, the harder and the more important it becomes to protect graft survival.
Just as important as the survival rate is design and placement. Which follicles to extract, and how to arrange and implant them, account for the most decisive part of the result.
You may need this if
- You have thinning across both the crown and front and need to fill a wide area in one session (Norwood 5-7)
- Your hair loss has advanced significantly, making it hard to achieve the density you want with 2,000-3,000 grafts
- You want a large change in a single surgery rather than several separate sessions
- You need reinforcement because density looks insufficient after a past transplant (decided after checking donor-area condition)
That said, mega-session transplantation is not the right answer for everyone. Because the amount possible in one session depends on your donor follicle supply and scalp condition, we start by honestly explaining what range is realistically possible, based on a precise examination.
The real key - graft survival rate
Moving a lot of grafts is meaningless if they do not survive. A well-managed non-incision FUE mega-session is reported to achieve a follicle graft survival rate of roughly 93.5-96.6%, and one of the biggest variables driving that result is out-of-body time - how long the follicles stay outside the body.
One study reported that the longer the out-of-body time, the lower the survival rate, with follicle viability declining by roughly 1% per hour.
With more follicles to move, mega-session transplantation means longer surgery, so out-of-body time management and unhurried precision determine the result. This is exactly where Motential's approach shines.
How Motential performs mega-session transplantation safely
Motential has built the conditions these studies point to for protecting graft survival directly into its clinical system.
Keeping follicle out-of-body time short
We focus on just one patient a day. Because we never alternate between patients, extraction, storage, and implantation flow without interruption, reducing the time follicles stay outside the body.
Skilled teamwork
The director personally performs both extraction and implantation, while resident, skilled follicle technicians carry out precise separation under high-magnification microscopes at the same time. (No ghost surgery)
Minimal follicle damage
The Multiphasic Punch System finely controls rotation and vibration to reduce damage during extraction, and extracted follicles are immediately stored in organ-transplant-grade preservation solution to maintain a viable environment.
Precise calculation of donor-area resources
Using AFS3D combined with AI diagnostics, we analyze scalp and follicle condition and donor-area density to design the amount possible in one session and a waste-free placement.
Natural golden-ratio design
The wider the area, the more important it is to arrange the angle and direction of the hair to match a beautiful line. With the same hair count, where and how it is placed is what separates a transplanted look from a transplant that looks like it was always there.
Fast recovery
Because non-incision FUE extracts each fine follicular unit one by one, it leaves no linear scar, so a return to daily life is relatively fast even after a mega-session transplant.
The real key - natural placement
As mentioned earlier, donor follicles are a limited resource that does not replenish. Extracting too many at once may look like a lot for now, but it can leave the donor area looking sparse, or leave too few follicles for later use if hair loss progresses further.
That is why my principle is not to move as many as possible, but to move exactly what you need now, into the most effective positions. Even if the graft survival rate is close to 100%, it is not a good result if the design and placement (implantation direction, angle, density distribution) look unnatural. Making the same hair count look fuller through placement - that, I believe, is the surgeon's skill.
Sometimes, rather than one ultra-large transplant, dividing it into stages or complementing density with SMP (scalp micropigmentation) is more natural and safer. What is right for you, I will tell you honestly after diagnosis.
Procedure Summary
※ Non-covered fees are disclosed in advance. Results may vary depending on individual scalp condition, donor area, lifestyle, and other factors.
After surgery is the real beginning - one year of committed care
The larger the transplant, the more aftercare determines the result. Motential treats the year it takes for the result to settle in as a project we walk through together.
The Day After Surgery
We manage the first stage of recovery with shampoo service and disinfection.
Week 2
We support scalp recovery with low-level laser therapy and exosome injections.
Month 6 · Year 1
We check graft survival and progress with microscopic examination.
Home Care
We continue your care with home-care products and lifelong free prescriptions.
Guaranteed Reinforcement
Anything that falls short of expectations, we take responsibility for with reinforcement retouch after-care surgery.
Extensive hair loss mega-session transplant cases
(posted after consent and review)
(posted after consent and review)
(posted after consent and review)
Frequently Asked Questions
Q.Can you implant as many grafts as possible in one session?
Q.Is mega-session transplantation safe?
Q.Can it be done in one session, or does it need to be divided?
Q.Do I need to shave my head? What about scars?
Q.Who performs the surgery?
Q.How long does recovery take?
Dr. Injae Lee performs every surgery himself
From consultation and diagnosis to design and surgery to aftercare, the director takes part personally in every step. He adds an artistic sense to medical precision to design the most natural result.
- American Board of Hair Restoration Surgery (ABHRS) · International Board (IBHRS)
- Executive Director, Korean Society of Hair Restoration Surgery · Member, ISHRS
- Former director of NewHair Clinic - co-author of a hair transplantation textbook
- Featured on EBS, SBS, JTBC, MBN, tvN and more
The wider the area, the more a single choice matters
The director diagnoses you personally and honestly explains what range is safely possible from the start. Leave a time that works for you, and we will consult with you one-on-one.
3F, Gallery JC Building, 415 Dosan-daero (Cheongdam-dong), Gangnam-gu, Seoul