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Home > Other Hair Removal Methods
Permanent Hair Removal: A Disputed Term - 2
Permanent Hair Removal
Long-term Hair Removal
Semi-permanent Hair Removal
Hair reduction & Hair Removal
"Permanent" Methods
No method is 100% effective in all clients
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Long-term Hair Removal
Another undefined term is
"long-term" hair removal. Again, it depends on what your definition
of "long" is. The hairfacts definition of "long-term" is being able
to go 6 months after your final treatment without having to use
another method of hair removal. Your definition may vary, but I
don't consider 9 weeks to be long-term. I arbitrarily decided on 6
months as a working definition, because most hair growth cycles will
have completed in 6 months.
Semi-permanent Hair Removal
A newer term used by some hair removal marketers is
"semi-permanent hair removal." This is a marketing term used in the
salon industry that some salons have started using to describe laser
results. In the salon industry, it means "lasting a few weeks."
Hair reduction & Hair Removal
Permanent hair removal has been established
as the complete destruction of a hair follicle's
ability to regenerate and grow hair.
Several lasers have demonstrated permanent hair
reduction in clinical studies and are allowed to
make this claim by FDA. The word "reduction" adds
another term that is vaguely defined. FDA has
accepted the definition of reduction as a stable
reduction in the number of coarse dark hairs. Some
lasers have demonstrated in clinical testing that
they can reduce the size of hairs and lighten the
color. In some patients, this reduction appears to
be permanent.
No method is 100% effective in all clients
All methods have some clients who do
not seem to respond to treatment. The reason is
unknown, and the exact percentages are not
established. Below are some examples of published
studies lasting six months or more that report
significant change:
All methods have some clients who do not seem to respond to treatment. The reason is unknown, and the exact percentages are not established. Below are some examples of human clinical studies published in medical journals or submitted to FDA. Note that some studies report good results but do not report non-responders. Laser clinical results are still widely variable in the published literature, with long-term response rates from 0% to 100%, depending on the study.
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Method |
Study |
In Study |
(%) With Significant Change |
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None |
-- |
-- |
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None |
-- |
-- |
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None |
-- |
-- |
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None |
-- |
-- |
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None |
-- |
-- |
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Verdich (1984) |
8 |
0 (0%) |
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FDA data (2000) |
393 |
228 (58%) |
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Verdich (1979) |
56 |
50 (90%) |
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Richards (1986) |
281 |
261 (93%) |
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Sadick (1999) |
67 |
28 (41%) |
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Eremia (2001) |
89 |
89 |
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Alster (2001) |
20 |
20 |
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Baumler (2002) |
16 |
4 (25%) |
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Liew (1999) |
48 |
17 (35%) |
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Nanni (1997) |
12 |
0 (0%) |
