FUE, DHI or sapphire FUE: which method suits you?
Clinics advertise many names, but behind them are just a few basic techniques. Here you'll learn how FUE, DHI, sapphire FUE and the older FUT method work, how they really differ, and what matters more in the end than the name.
Key points
- Every hair transplant has three steps: extracting grafts, opening channels, placing grafts. The methods mainly differ in how these steps are done.
- FUE, sapphire FUE and DHI extract grafts the same way, one by one with a fine hollow needle. They differ in opening the channels and placing the grafts.
- For the result, the team's experience and care usually matter more than the name of the method. Ask who does which step.
Three steps every method has
Whatever a method is called, at its core every hair transplant involves three things:
- Extraction: grafts are taken from the donor area at the back and sides of the head.
- Opening channels: tiny openings are made in the bald or thinning area. Direction, angle and spacing determine how natural the result looks.
- Placement: the grafts go into these openings.
The method names describe how these steps are done. That's why it pays to ask, for every offer, which step is done how and by whom.
FUE: individual extraction
FUE stands for Follicular Unit Extraction. Grafts are released one by one from the donor area with a fine hollow needle, usually less than a millimetre in diameter. For this, the donor area is usually shaved short.
The doctor then opens the channels in the recipient area, classically with fine steel blades or needles, and the team places the grafts with forceps.
Many tiny dot-shaped scars remain at the back of the head. At normal hair length they're usually invisible; with very short hair they can sometimes show. FUE is the most widely used method today.
Each clinic states in its offer which method it suggests for you.
Which area bothers you most?
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Start without choosingSapphire FUE: different blades for the channels
Sapphire FUE is not a separate extraction technique but an FUE in which the channels are opened with sapphire blades instead of steel ones. The blades are very smooth and can be ground very fine.
Clinics associate this with smaller channels and faster healing. How big the difference to good steel blades really is has not been clearly shown scientifically. What matters is how carefully the channels are made.
DHI: placing with the implanter
DHI stands for Direct Hair Implantation. Extraction works as in FUE. The difference is in placement: grafts are loaded into a pen-shaped implanter, often called a Choi pen, and inserted directly into the skin. Opening and placing happen in one step.
This allows precise control of angle and depth, for example at the hairline, and sometimes treatment without shaving the recipient area. In return, DHI usually takes longer, needs a well-practised team, and often fewer grafts can be placed per session than with FUE. That's why DHI is often somewhat more expensive.
FUT: the strip method
In FUT, Follicular Unit Transplantation, a narrow strip of skin is removed from the back of the head and the wound is stitched. The strip is then dissected into individual grafts under a microscope.
The advantage: the donor area doesn't need to be shaved, and many grafts can be harvested in one session. The disadvantage: a linear scar remains at the back of the head, which can be visible with very short hair. Today FUT is offered less often than FUE.
The methods compared
A rough guide. In individual cases it can look different, depending on the clinic and your starting point.
| FUE | Sapphire FUE | DHI | FUT | |
|---|---|---|---|---|
| Extraction | one by one with a hollow needle | one by one with a hollow needle | one by one with a hollow needle | skin strip |
| Channels | steel blade or needle | sapphire blade | with the implanter, during placement | steel blade or needle |
| Placement | with forceps | with forceps | with the implanter | with forceps |
| Shave donor area | usually yes | usually yes | usually yes | no |
| Scars at the back | many small dots | many small dots | many small dots | one fine line |
| Price | baseline | often a little higher | often higher | varies |
Which method suits you?
There is no single best method. These points help you get your bearings; you make the decision with the clinic:
- Large area, many grafts: FUE or sapphire FUE is often used here, because many grafts can be placed in one session.
- Fine hairline or densifying between existing hair: this is where DHI is strongest, because every graft can be placed precisely.
- You don't want to shave the recipient area: ask about DHI or unshaven FUE. Not every clinic offers it, and it often costs more.
- You wear your hair very short at the back: then FUE is usually a better choice than FUT with its linear scar.
More important than the name is who operates. A carefully done FUE can look better than a poorly done DHI, and vice versa.
Questions to ask the clinic
- Which method do you recommend for me, and why?
- Who extracts the grafts, who opens the channels, who places them?
- How many grafts are you planning, and how many can my donor area supply?
- Do I need to shave the donor area or the recipient area?
- How many patients does your team treat in one day?
- What does the method cost, and what is included in the price?
On Trichio every offer states the method, together with who operates. So you can compare the clinics' answers directly.
