Multiple choice What is selective photothermolysis? elemental unit of light Built up amplification of laser light under external stimuli Tx using approp. wav, exposure time & pulse duration to stimulate or change cellular function Reveal answer Fill a bubble to check yourself C Correct answer Explanation Selective photothermolysis is the principle of using specific wavelengths, pulse durations, and fluences to target specific structures in the skin without damaging surrounding tissue.