What is laser hair removal?
Laser hair removal is a procedure to remove unwanted hair on your body. It’s noninvasive, which means it doesn’t require any cuts in your skin. People may get this treatment on any part of their body, but the most common areas are:
- Face.
- Underarms.
- Bikini area, or any areas that grow pubic hair.
- Back.
- Legs.
How does laser hair removal work?
Laser hair removal uses a process called selective photothermolysis. Heat from a laser destroys cells that have a lot of pigment (color). Since dark hair has a lot of pigment, it absorbs the most heat. Hair transfers heat to the hair follicles and destroys them, so hair can’t grow.
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A hair follicle has to be in its anagen, or growth, stage for the procedure to work. Follicles are in different stages at different times, so most people need multiple laser treatments.
Who can have laser hair removal?
Anyone with extra body hair can have laser hair removal. It’s usually a cosmetic procedure. It may improve your appearance or self-image. Many people also prefer not having to shave regularly.
Sometimes laser hair removal treats excess hair growth caused by:
- Hirsutism, when women grow dark or coarse hair in areas where men usually have hair.
- Hypertrichosis, when men or women grow excess hair anywhere on their bodies.
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These conditions might be the result of:
- Certain medications, including anabolic steroids and birth control pills.
- Hormone imbalances, especially increased testosterone or androgen levels.
- Inherited disorders, conditions passed from parents to children through genes.
- Polycystic ovary syndrome (PCOS).
- Tumors that produce hormones.
Laser hair removal is most effective for people with thick, dark hair and light skin. The contrast between skin color and hair color makes it easier for the hair to absorb heat. It might not work as well for people with dark skin or hair that’s blonde, gray, white or red.
Who shouldn’t have laser hair removal?
Talk to your healthcare provider before having laser hair removal. You may need to avoid the procedure if you:
- Are pregnant.
- Are taking certain medications, such as acne treatments.
- Have genital herpes (HSV-2) or are prone to cold sores.
- Have keloid scars (raised scars).
- Have or have had skin cancer.
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