From the Research
Laser hair removal is a highly effective method for permanent hair reduction, with a success rate of up to 90% after multiple sessions, and it does not cause hair regrowth, but rather targets and damages hair follicles to inhibit future growth. The success rate of laser hair removal varies based on factors such as hair color, treatment area, and hormonal conditions, with the best results typically seen in individuals with dark hair and light skin 1.
Key Factors Affecting Success Rate
- Hair color: works best on dark hair with light skin
- Treatment area: face may require more maintenance than legs
- Hormonal conditions: PCOS may reduce effectiveness
- Number of sessions: most people need 6-8 sessions spaced 4-8 weeks apart for optimal results
Temporary Side Effects
- Redness
- Swelling
- Skin irritation lasting 1-3 days
Long-term Efficacy
The long-pulsed 755 nm alexandrite laser has been shown to be a safe and efficacious treatment for the reduction of unwanted body hair with permanent results and high patient satisfaction, with 87.9% of patients reporting sustained improvement after 11.5 years 2.
Maintenance Treatments
Maintenance treatments may be needed annually to maintain optimal results, and the procedure works by selectively targeting melanin in hair follicles while sparing surrounding skin, converting light energy to heat that damages the follicle 3.
Comparison with Other Hair Removal Methods
Laser hair removal is generally more effective than other hair removal methods, such as shaving, waxing, and electrolysis, with a higher success rate and longer-lasting results 4.
Home-Use Devices
Home-use devices for hair removal have also been shown to be effective, with high hair reduction efficacy after a short treatment regime, and prolonged and less frequent maintenance treatment can lead to high and sustained hair reduction even one year after cessation of treatment 5.