30 years of FORHAIR FUE hair transplant All you need to know about FUE. Our results speak for themselves.

MICRO SLIT HOLES FOR EACH GRAFT
INNOVATIVE NEW DESIGN

Surgeons confess the following:
‘The slit technique truly produces outstanding results,
but the surgeon must be extremely skillful’.
FORHAIR implements slit method. The skill of the
surgeon is a fundamental requirement, not a condition.

The slit technique involves difficult procedures since hair follicles
are implanted one-by-one. The level of satisfaction of patients is very high
as it produces excellent results through delicate surgical procedures.

However, slit implantation can be executed only if supported by various
surgical systems including high levels of surgeon skill, sufficiently
trained surgical team members, and investments of time and cost.

This is the reason why so many hospitals are not able to undergo the
transition to slit implantation easily. FORHAIR’S only goal
is to present satisfying results for patients and that is
why FORHAIR is great at SLIT implantation.

image
01 Perfect slit size and depth determine
graft survival rate.

The action of making a slit is like generating the environment in which the hair follicles will live throughout their lifespans. It is the format of implanting hair follicles by making holes with a slitting tool, a small and sharp tool, one-by-one. It is essential to make spaces that are perfect for each hair follicle, not too small or large, in order to supply oxygen and nutrients to the follicles harmoniously. As such, the size of the slit made is very important in determining the engraftment rate.

The ideal method is to make slits as small as possible while allowing hair follicles to be inserted at once
without causing damage. FORHAIR increases graft survival by making slits with perfect sizes for each hair follicle.

Reasons for the importance of slit size and depth
  • If the slit is too small image If the slit is too small?

    Difficult to insert hair follicle
    at once. Lowered engraftment rate
    due to many contacts.

  • perfect slit size image FORHAIR perfect slit size

    Create right sized slit for each graft.
    0.8mm for single-strand hair follicle,
    1.1mm for 2-3 hair follicles and
    1.2~1.3mm for thick or curly follicles.

  • If the slit is too large image If the slit is too large?

    Although it is easier to insert
    hair follicles,blood stagnation
    and graft survival rate reduction
    occur due to degraded supply of
    nutrients from gap between hair
    follicle and slit.

  • If the slit is too shallow image If the slit is too shallow?

    Engraftment rate decreases
    when the follicle touches the bottom

  • perfect slit depth image FORHAIR perfect slit depth

    Create right sized slit for
    each graft.
    0.8mm for single-strand
    hair follicle, 1.1mm for 2-3
    hair follicles and 1.2~1.3mm
    for thick or curly follicles.

  • If the slit is too deep image If the slit is too deep?

    Graft survival rate reduction
    due to blocking of the
    oxygen supply arising
    from stagnation of blood
    in the bottom space

Adjustment of slit depth is entirely up to the skill of the surgeon.  Unlike an implanting device that semi-automatically probes into the scalp, slit depth is determined by the expertise and judgment of the surgeon whenever a hole is made. If the surgeon is highly skilled, he/she can feel the hair follicle roots touching the bottom of the slit. Since a hair follicle is highly fragile and soft, it can be overlooked unless the surgeon is equipped with an extremely fine sensibility. FORHAIR increases graft survival rate by enabling the inserted hair follicle to intertwine with the tissue by making slits of optimal depth. 

Dilator: immediate hair follicle implantation excellence

Micro slit hole is same as or slightly smaller than the hair follicles size. Most of cases, grafts
are placed in the slit directly or after widening the slit hole. Either way, inevitably, it touches follicles.
FORHAIR has a history of successful implantation through the use of a
needle tool called a Dilator to reduce hair follicle damage.

  • Slit of smaller size than hair follicle image

    Slit of smaller size
    than hair follicle

  • image

    Slit is touched slightly
    with needle tool (Dilator)
    at blunt end to widen
    the hole momentarily

  • image

    Successful implantation
    at once without damage
    to hair follicle

  • image

    Widened slit closes up
    again to its original size
    and hair intertwines with
    the surrounding skin tissue

02 Ultimate snug fit for perfect hair follicle implantation

Even if healthy hair follicles are collected and perfect sized slits are made, everything will go wrong if follicle
implantation is done incorrectly. Therefore, implantation is a truly important stage. FORHAIR is equipped with
unparalleled technological capabilities and expertise in hair follicle implantation.

The hair graft collected by FORHAIR’s exclusive punch has a skin tissue attached on the top so the upper part
is mushroom-shaped similar. Then, when we place it into the micro slit hole, it creates a snug fit.

Only highly experienced with sensitive manual dexterity can create snug-fit. Slit implantation too much relies on performers
and people say it is a weakness of the method but, it is strength to Forhair and we perform slit implantation well.

Core processes of FORHAIR hair follicle implantation
  • Mushroom-shaped hair follicle collected image Mushroom-shaped hair follicle collected

    Magnified view of collected hair
    follicle with skin tissue adhering
    to the top portion.

  • Snug fit implantation image Snug fit implantation

    Hair follicle implanted to fit perfectly
    for the slit depth and scalp surface

  • Immediately after snug fit implantation image Immediately after
    snug fit implantation

    The skin tissue bulges out on the
    scalp surface and it will soon
    naturally detach themselves.

  • What is the reason for hair follicles being implanted too deeply?

    Hair follicles are not implanted too deep by SLIT method for most of cases
    but there is possibility of going deep if hair follicles are thin.

    That is, if there is little tissue surrounding the hair follicle and no skin tissue at the top of the it, it may be inserted too deeply into the slit, since there is nothing to catch the scalp surface. Therefore, there rarely are cases of implanting hair follicles too deeply at FORHAIR. If the hair follicle is inserted too deeply and gets increasingly retracted into the slit hole, it may appear from outside that the hair follicle has not been implanted, consequently resulting in double implantation of the hair follicle (“piggybacking”). In that case, the hair follicle will become entangled or damaged, resulting in a in drop in the engraftment rate, thereby requiring precautions to be taken.

    • If a hair follicle is too thin image
      If a hair follicle is too thin?
      If a hair follicle is too thin, there is a high possibility of getting implanted too deeply without skin tissue catching the scalp surface.
    • If a hair follicle is implanted too deep image
      If a hair follicle is implanted too deep?
      If a hair follicle is implanted too deeply, it will look as if the hair is growing out of a deeply dented scar and the scalp surface will become undulated.
  • Must the hair follicle depth be adjusted after hair follicle implantation?
03 Realization of hair direction and high density determine
the natural appearance of hair.

The direction of implanted hair is determined by the angle and direction of the slit.
Accordingly, the surgeon’s skill in making the slit is the most important aspect of the surgery.

In particular, if the hair is almost lying down as in the case of the hair line, eyebrows, and sideburns, it is advisable to make slits as low as possible, as though slicing pieces of sashimi. For the area of the hair whorl, a natural appearance is achieved by adjusting the slit direction in detail in a whirling shape.

FORHAIR’s know-how of SLIT angle & direction
  • Before

    Before
    Marking hair whorl
    and direction of hair growth

  • After shaving

    After shaving
    Marked lines show
    the direction of hair growth

  • After SLIT

    After SLIT
    Slit are created following
    the existing hair’s direction like a spiral

  • Is it possible to align the hair direction (curl) with FUE hair transplant?
    There is a false fact about FUE hair transplant that because the collected hair is too short, it can’t tell the direction of hair growth. It is a misconception and implanted hair grow well following the original hairs growth direction when right slit angle and direction are created.

    It is a simple logic, but it’s not something anyone can do. In addition, the transplanted hair will naturally fit over time as the surrounding hair. So there is nothing to worry.
Slit implantation for your desired density

An advantage of slit implantation is the ability to make high density holes regardless of scalp properties,
while a hair planting device faces restrictions in its use depending on scalp characteristics.

A hair implanting device generates a popping phenomenon, that is, the phenomenon of neighboring hair follicles bulging up due to the pressure created when inserting the device, which occurs due to the thickness of the inner diameter. In the case of a hard scalp, the occurrence rate of the popping phenomenon increases due to the greater resistance experienced when inserting the device. Therefore, it could be difficult to achieve the high density that the patient desires.

  • Hair planting device popping phenomenon image Hair implanter pen popping phenomenon

    Neighboring hair follicles can bulge out due to pressure
    generated when a hair planting device is inserted.

  • For Hair’s high density slit implantation image FORHAIR high density slit implantation

    It is possible to implant 30~40 hair follicles per ㎠
    without any popping, using a minute slit needle

  • Non-incisional partial shaving, 10 months later image Paritial-shaven FUE, 1300 grafts, After 10 months
  • Is slit implantation really free of the popping phenomenon?
    A hair implanter pen implants hair follicles by clicking the button as soon as it is stabbed into the scalp,
    similar to the mechanism of a mechanical pencil. On the other hand, the slit technique implants
    hair follicles after having first made a slit hole.
    As such, the popping phenomenon rarely occurs under the slit technique,
    even if hair follicles are implanted at a high density, since the format of implantation differs.
High density design implantation with natural appearance

Natural looking and abundant hair is what everyone wants. However, high density implantation does not simply mean implanting hair densely in an indiscriminate manner. Hair follicles need to be distributed with differing designs in accordance with the density in the donor area and the patient’s hair style. Since Asians have lower density hair than westerners but have a marked difference in color and size between the hair and scalp, it is necessary to implant hair at a higher density in order to ensure that the implanted hair does not appear sparse, and to ensure high patient satisfaction . With the exclusion of special cases, FORHAIR implants hair follicles at a high density of 40~50 follicles per ㎠ for men’s hairlines. Therefore, it is possible to achieve a natural appearance which is not easily noticeable, even for young men

  • If there is sufficient hair in the donor area image If there is sufficient hair in the donor area

    80% of the normal density of 40~50 hair follicles per ㎠

  • If there is insufficient hair in the donor area image If there is insufficient hair in the donor area

    70% of normal density of 40~50 hair follicles per ㎠

  • Non-incisional without shaving, 1500 hair follicles, 10 months later image Non-shaven FUE, 1500 grafts, After 10 months
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