LASER is short for “Light Amplification by Stimulated Emission of Radiation”. They use a single wavelength of light to deliver energy to a certain target within the skin. These targets are usually pigment, blood vessels or the haemoglobin found in red blood cells. As such, there are lasers with different wavelengths for a variety of conditions from acne to thread veins, to rejuvenation of the skin to help with improving wrinkles or scars.