The new, specially designed LightSheer(tm) Diode Laser effectively removes
unwanted, excess hair much faster, more reliably, and more comfortably than
standard long-term methods like electrolysis and electrothermolysis. To
understand how the LightSheer(tm) Diode Laser works, it helps to know a little more
about how hair grows and how laser light vaporizes unwanted tissue.
How does hair grow?
Hair forms in a pouchlike structure below the skin called a hair follicle.
What we see as hair is actually the hair shaft, which is the keratinized,
hardened tissue that grows from this follicle.
Humans have more hair follicles per square inch of skin than most higher
primates, including chimpanzees and gorillas. Because most of this hair is fine
and pale (called vellus hair), it usually isn't visible to the naked eye.
Consider this: the forehead has more hair follicles than any other part of the
body. The thicker, fully pigmented hair most people consider "real hair" is
called terminal hair. This hair is found on scalp, eyebrows, legs, backs,
underarms, and genital areas. This is the hair the LightSheer(tm) Diode Laser
Everyone's hair grows differently, depending on age, weight, metabolism,
hormones, ethnicity, medications, and other factors. But all hair goes through
three distinct growth phases:
1) Active growth phase called the anagen phase. During the anagen phase the hair has an abundance of melanin.
2) Regressive phase called the catagen phase when
the hair stops growing but is not yet shed.
3) Resting phase called the telogen phase after which the hair falls out and a
new hair begins to form.
The LightSheer(tm) Diode Laser most effectively disables hair that is in the
active growth (anagen) phase. Because all the hair in a treated area will not be
in the anagen phase, more than one laser treatment is necessary to remove
the hair that subsequently enters the growth phase.
How does the LightSheer(tm) Diode Laser work?
A laser produces a beam of highly concentrated light. Different types of
lasers produce different colors of light.
The light emitted by the LightSheer(tm) Diode Laser is absorbed by the pigment
(melanin) located in hair follicles (melanin pigments give hair its color) and
hair shaft. The laser pulses for a fraction of a second, just long enough to
vaporize the pigment - disabling several hair follicles at a time to eliminate
or significantly impede the hair's regrowth - but not long enough to damage the
surrounding skin. The LightSheer(tm) Diode Laser's special contact-cooling handpiece further protects the epidermis (upper layer of skin). This patented
method of epidermal preservation allows delivery of more laser energy deeper
into the hair follicle.
Additionally, the LightSheer(tm) Diode Laser is able to treat a broader range of
skin types than most other hair-removal lasers. It is delicate enough for a
woman's fine, sensitive skin and robust enough for a man's beard, back, or arms.
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