Laser Treatment of Skin of Color for Medical and Aesthetic Uses With a New 650-Microsecond Nd:YAG 1064nm Laser

April 2019 | Volume 18 | Issue 4 | Supplement Individual Articles | 135 | Copyright © April 2019

Wendy E. Roberts MD,a Michelle Henry MD,b Cheryl Burgess MD,c Nazanin Saedi MD,d Suneel Chilukuri MD,e Dr. Arusha Campbell-Chambers MBBS MScf

aGenerational and Cosmetic Dermatology, Rancho Mirage, CA bLaser & Skin Surgery Center of New York, New York, NY cCenter for Dermatology and Dermatologic Surgery, Washington, DC dDepartment of Dermatology, Thomas Jefferson University, Philadelphia, PA eRefresh Dermatology, Houston, TX fDermatology Solutions, Skin Body & Mind Clinic & Institute, Montego Bay, Jamaica

Table1nitude necessitate continuous cooling of the target skin tissue to minimize pain during treatment and damage to surrounding tissue.10 With the new laser’s 650-microsecond pulse duration, thermal damage to surrounding tissues, scarring, and pigmentary changes are not observed because the 650-microsecond pulse duration is shorter than or equal to the thermal relaxation time of the therapeutic target.The 650-microsecond 1064nm laser is particularly useful in treating dark-skinned patients. Since the pulse duration is shorter than the thermal relaxation time of both the skin and blood vessels, the therapeutic target is heated more rapidly than the rate at which heat is conducted to the surrounding skin, thus lowering the risk of tissue damage and unwanted pigmentary changes.11


The 650-microsecond 1064nm laser with a collimated beam, alone or in combination with other therapies, may be used to treat melasma, acne, postinflammatory hyperpigmentation, pseudofolliculitis barbae, acne keloidalis nuchae, and aging skin with unprecedented efficacy and safety in human skin of color, all without the use of skin cooling or anesthetics during treatment. In addition to the unique safety and tolerability associated with treating skin with the 650-microsecond pulse duration, the collimated beam enables treatment from any distance to the skin without affecting the laser fluence, thus enhancing safety and efficacy by eliminating the inherent risk of wide variations in fluence that exist with a divergent or convergent laser beam.


Drs. Roberts, Henry, Burgess, Saedi, and Chilukuri are members of the Medical Advisory Board of Aerolase Corporation. Dr. Campbell-Chambers has no conflicts of interest to disclose.


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Wendy E. Roberts MD