Fact -1: Laser Hair Removal techniques best work on people with dark hair and light skin. A new device, Aurora by Syneron, uses both intense pulsed light and radio frequency to treat women with blonde or gray hair, but they are only about 50% as effective as other lasers.
Fact-2: Lasers use pulsed light to target, break down and destroy the melanin (dark pigment) in hair. This is why it works only on dark hair. Lasers will also target the melonin in dark skin, which can cause discoloration. Hair grows in three phases: growing, resting and shedding. Lasers and pulsed lights targets hair in the growth phase. After the laser treatment, hair falls out within 10-14 days.
Fact-3:It takes 4-6 laser hair removal sessions spaced 4 weeks apart to see 70-80 percent reduction in hair growth. By the way, no guarantee is provided how well this techniques will work.The average experience is 70-80 percent reduction in hair growth if you do a full 4-6 course treatment.If You like to have one ,then you have to shave the treatment area three days before. Laser technicians can tell you better how to prepared yourself for this.
Fact 4: Some normal side effects may occur after laser hair removal treatments, including itching, redness, and swelling around the treatment area. These side effects rarely last more than three days. The most common serious side effect is change in skin pigment.Some level of pain should also be expected during treatments.Unwanted side effects such as hypo- or hyper-pigmentation or, in extreme cases, burning of the skin can occur.It depends on the adjustment in laser selection or settings as well as laser technician skill.