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
nitude 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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Gold MH, Goldberg DJ, Nestor MS. Current treatments of acne: medications, lights, lasers, and a novel 650-μs 1064nm Nd: YAG laser. J Cosmet Dermatol. 2017;16:303-318.
Rose AE, Goldberg DJ. Successful treatment of facial telangiectasias using a micropulse 1,064nm neodymium-doped yttrium aluminum garnet laser. Dermatol Surg. 2013;39:1062-1066.
Henry M. Treatment of Hyperpigmentation on Skin of Color using a 650-Microsecond Pulsed 1064nm Laser. Presented at the American Society of Dermatologic Surgery 2018 in Phoeniz, AZ.
Walsh JT Jr., Flotte TJ, Anderson RR, Deutsch TF. Pulsed CO2 laser tissue ablation: effect of tissue type and pulse duration on thermal damage. Lasers Surg Med. 1988;8:108-118.
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