A broad spectrum of light is transmitted through a small, smooth, transparent handpiece which is gently placed over the skin. Cut-off filters in the handpiece change the wavelength range allowing it to be optimized for different applications and skin types. The light penetrates the tissue and is absorbed by either the blood when treating vascular lesions or the melanin when treating pigmented lesions damaging them. The body's natural processes then remove the injured tissue giving the skin a more even and youthful appearance.