Q Switched Nd: YAG (neodymium–doped yttrium aluminum garnet) is a lasing medium that helps in targeting dermal pigmentation and melasma that is not amenable to treatment with depigmenting creams and chemical peels. While the epidermal lesions respond best to 532 nm (frequency-doubled NdYAG) the dermal lesions are better treated with 1064 nm. Q-switched lasers are the gold standard for the treatment of tattoos.
Freckles: Response is the same as for lentigines. Although very effective, the risk of dyspigmentation exists.
Lentigines: usually 1‑2 sessions are enough to clear lentigines at 532 nm. However there is a risk of hypo/hyperpigmentation, so avoidance of sun exposure for 4-6 weeks post laser is very important.
Cafe–au lait macules: These again can be treated effectively in 1‑2 sessions, but recurrence is common which requires multiple treatments.
Freckles: Response is the same as for lentigines. Although very effective, the risk of dyspigmentation exists.
Dermal pigmented lesions: Nevus of Ota, Nevus of Ito, Mongolian spots, Hori’s nevus, ABNOMs (acquired bilateral nevus of Ota like macules), and other flat pigmented birthmarks respond well at 1064 nm. Multiple sessions are usually required with the near-total clearing of the lesion in most cases.
Melasma: The dermal component of melasma can also be treated but recurrence is common and complete clearance is not seen.
Fading of the lesion will be noted over 8 weeks and retreatment energy levels can be tailored depending on the clinical response observed. Treatment is to be repeated every 15 days. For all skin rejuvenation services.
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Skin Soul is a patient-centric Dermatologic Centre of Excellence that has been conceived and developed by Dr. Sneh Thadani. After completing her
DNB in Dermatology and practicing for over nine years