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Alexandrite Laser for Underarm Hair Removal?

Underarm hairs usually respond well to laser hair removal treatments. The type of laser that will work best on you will depend on your skin type and hair type. Both Alexandrite and YAG can be effective. It is always best to get a consultation so that your skin and hair type can be assessed for best results. You will need about 6 treatments every 6 weeks, and that normally results in about 85-90% hair reduction.

Clinical Context

Laser hair removal works by targeting pigment in the hair follicle, so it's most effective on hair that's dark and coarse — like most underarm hair. Fine, light, or gray hairs have less pigment for the laser to target, so they respond less predictably. Skin tone matters too: darker skin often does better with a Nd: YAG laser, which is gentler on surrounding skin, while Alexandrite works well for lighter skin tones. Because hair grows in cycles, multiple sessions spaced weeks apart are needed to catch each hair during its active growth phase.

Answered By

Dr. Steven Williams

President Emeritus of ASPS

Dr. Steven Williams is a board-certified plastic and reconstructive surgeon, a diplomate of the American Board of Plastic Surgery, the Past President of the prestigious American Society of Plastic Surgeons, and a charitable person who dedicates his life to those in need of his unique expertise.

We are leaders in cosmetic surgery, facial aesthetics, and medically supervised weight loss, serving the entire San Francisco Bay area. Whether you live in the Bay Area or are coming in from out of town, we’re happy to answer any questions you may have on your path to your new self. Book your cosmetic surgery intro call or Med Spa consultation today and take the first step towards realizing the look you’ve always wanted for yourself.

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