The DioLite 532 laser uses a light beam to treat vascular and pigmented skin lesions. It can treat facial spider veins, lentigines (flat, brown spots), keratoses (slightly elevated pigmented spots), and freckles. Pigmented lesions occur when an abundance of melanocytes, or pigment-producing cells, are found in the skin. When the dark pigment multiplies, it forms freckles and age spots. Vascular lesions (spider veins) are created by large blood vessels under the surface of the skin.

In most cases, this treatment is performed without an anesthetic, though a topical anesthetic may be applied. Using a thin handpiece, the doctor directs a beam of laser light to the area needing treatment. Patients often experience a small stinging sensation during treatment, followed by some redness which disappears within two to four hours. Results will be evident within 10-14 days for vascular lesions, and within 2-3 weeks for pigmented lesions.