h
aIr
g
rowTh
Hair normally grows in three phases
Anagen phase (growing phase)
The concentration of melanin is highest when the hair grows
most actively from the root. Melanin is the key factor to
make the pigmentation of the hair, such that the darker
the hair is, the more melanin there is in its root. Hence,
controlling the melanin level is the key to this method of
improving hair-growth efficacy. The most effective time for
the IPL treatment is in the anagen phase of hair growth.
Catagen phase (degradation phase)
In decline period, hair growth stops, the pore and root
shrink, and the old hair is then fallen out.
Telogen phase (resting phase)
Once the old hair is fallen out, a new hair will be slowly
grown in the same root. The old root remains empty until
the biological cycle restarts and a new hair grows in the
place of the old one.
13
o
peraTIon
f
or
h
aIr
r
emoval
Summary of Contents for IPL-101
Page 36: ......
