Laser technology has transformed medical and dermatological practice, moving from experimental uses in the 1970s to become a standard of care for conditions ranging from vascular lesions to aesthetic rejuvenation.

Medical lasers operate on the principle of , where specific wavelengths of light target "chromophores" in the skin—such as melanin (pigment), hemoglobin (blood), or water—converting light energy into heat to destroy target structures while sparing surrounding tissue. Primary Dermatologic Applications Lasers in dermatology - Medicine