The Candela laser treatment creates a beam of high-intensity light that penetrates deeply into skin tissue, and targets the vascular lesion. Candela’s patented DCD™ technology protects the upper layers of your skin with a cooling burst of cryogen. Candela's vascular treatment offers optimal results with minimal side effects. Elos by Syneron, for facial and leg vein treatment, uses combined energies of bi-polar radio frequency and light energies to precisely target and heat the unwanted vein.