Light and dark-skinned individuals can now safely and effectively benefit from therapy with the Syneron Laser. Patients with dark suntans or photosensitivity disorders, diabetes, bleeding disorders, or currently taking photosensitizing medications are not good candidates. How many treatments are required? The number of treatments necessary to resolve your vein problem depends on the size of the vein and your body's ability to heal. During your consultation, an approximate number of treatments will be recommended.