How does Laser Hair Removal Work?
One of the most popular methods of treating large areas such as legs and backs for Hair Removal at our Cambridge clinic is SHR mode.
SHR mode delivers a series of smaller laser pulses while the head is moved continuously over the skin in order to gradually heat an area that contains hairs. When this is done the hairs absorb the energy more than the surrounding tissue causing them to heat more. Whilst this is happening the head is constantly cooling the epidermis which helps the treatment feel less uncomfortable.
Hair growth occurs in 4 stages. Stage 1 (early anagen); Stage 2 active hair growth (anagen); Stage 3 regression (catagen) and Stage 4 resting not growing (telogen).
Hairs can only be reduced/destroyed when the hairs are actively growing (the anagen phase). Laser energy is absorbed by the melanin in the growing hair. Dormant hair follicles do not contain enough melanin to be affected by the laser hair removal process, so multiple treatments are recommended to treat new hairs as their follicles become active.