2011年12月2日星期五

Fitzpatrick Skin Type--the basic aynalise before make any treament



Skin TypeTypical FeaturesTanning AbilityEffectiveness for LaserScore

Type I
  • Pale white skin
  • Blue / Hazel eyes
  • Blond / Red hair
  • Freckles or Albino
  • Highly sensitive
  • Always burns
  • Never tans
Laser hair removal will be most effective on skin type I. The type I of skin absorbs the least amount of laser light, so a relatively high amount of energy can be used to hair follicles. This results of laser hair removal in an extremely effective and painless treatment.
Common device :
Diode laser 808nm or 810nm, Alexandrite Laser 755nm, IPL
0 - 7

Type II
  • Fair skin
  • Blue eyes
  • Very sun sensitive
  • Burns easily
  • Tans minimally
Laser hair removal will be very effective on skin type II. The type II of skin absorbs very little laser light, so a relatively high amount of energy can be used to hair follicles. It resulting in excellent permanent results of laser hair removal.
Common device :
Diode laser, Alexandrite laser, IPL
8 - 16

Type III
  • Darker white skin

    Example :
    Darker Caucasians, European mix
  • Sun sensitive skin
  • Sometimes burns
  • Slowly tans to light brown
Laser hair removal of dark hairs will be effective on skin type III. The type III of skin absorbs more laser light than lighter shades of skin, so the energy on some types of lasers may be turned down somewhat to avoid damaging the skin.
The procedure may not provide permanent results of laser hair removal for light brown or blonde hair that is not markedly darker than the skin.
Common device : Doide Laser, NG:YAG Laser, ipl
17 - 25

Type IV
  • Light brown skin

    Example :
    Mediterranian, European, Asian, Hispanic, American Indian
  • Mini sun sensitive
  • Burns minimally
  • Tans to moderate brown
The skin type IV absorbs a relatively large amount of laser radiation, consequently, they was not traditionally treated by lasers. From 2001 year, laser designs have been developed that allow effective treatment of dark hair on skin types IV and darker (types V and VI).
A few more visits might need to be scheduled to make the hair removal / reduction truly permanent. If you are currently tanned (even with tan-in-a-can) you should wait before having any laser procedures.
Common device : ND:YAG Laser, IPL,
25 - 30

Type V
  • Brown skin

    Example :
    Hispanics, Afro-American, Middle Eastern
  • Sun-insensitive skin
  • Rarely burns
  • Tans well
The skin type V and VI absorbs more laser radiation than other types of skin, consequently, was not traditionally treated by lasers.
Common device : Nd : YAG laser
Over 30

Type VI
  • Dark brown
    Black skin

    Example :
    Afro-American, African, Middle Eastern
  • Sun-insensitive
  • Never burns
  • Deeply pigmented


The type of skin is the key factors of laser hair removal effectiveness. Below let us look at the effect of laser hair removal for various types of skin. There are four basic skin types :

1. Caucasian, European (Fitzpatrick skin type I, II, III)

The people from this group are the best candidates for laser hair removal treatment. The skin of this group people absorbs the least amount of laser light. Generally, they will need fewer treatments and attain the best results. Overall, the effectiveness of laser hair removal on individuals from this group is dependent upon a combination of their hair and skin color.

2. Eastern Asian, American Indian (Fitzpatrick skin type IV)

The people from this group often have the least amount of facial and body hair. They are usually good candidates for laser hair removal because their hair is dark, and they have minimal skin pigmentation. A few more visits might need to be scheduled to make the hair removal truly permanent.

3. Middle Eastern, Mediterranean, Hispanics, Afro-American (Fitzpatrick skin type V)

The people from this group tend to have the most facial and body hair. Their skin color can very from dark white to medium brown and absorbs more laser radiation than other types of skin. Those people with lighter skin generally make better candidates for laser hair removal.
Skin bleaching agents, such as 4% hydroquinone, are sometimes used by people in this group to lighten the skin as much as possible. This is done to make the laser treatment as effective as possible and reduce the risk of burning the skin. This ethnic group has an increased risk of hyperpigmentation.

4. African descent (Fitzpatrick skin type VI)

The people from this group with dark brown skin or poor candidates for laser hair removal. Their skin will absorbs a large number of laser , causing possible burns, scars, and keloids. Consequently, they are not traditionally treated by lasers.

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