Unlike lasers, which use a single wavelength, IPL (Intense Pulsed Light) is a non-invasive, non-ablative treatment that emits visible light across multiple wavelengths in a single pulse. Although the principle—where light energy is converted into heat within the target tissue—is similar to that of a laser, IPL differs in that it emits multiple wavelengths simultaneously, allowing it to effectively treat a wide range of skin concerns. It is used to treat various skin concerns, such as pigmented lesions (freckles and age spots), vascular dilation (capillaries and rosacea), fine lines, and mild acne, and is also used for hair removal. The recovery period is short, allowing patients to resume their daily routines immediately after treatment. Each session lasts about 20 minutes, and multiple sessions (typically 4–6) are performed at intervals of 3–6 weeks. Temporary redness, mild swelling, and bruising may occur, and in rare cases, hypopigmentation or blisters have been reported. Suitability varies depending on the specific target—such as pigmentation or blood vessels—so a consultation is necessary to determine eligibility. This information is for reference only and does not constitute a diagnosis. Please consult a specialist before undergoing the actual procedure.
[Source] https://dermnetnz.org/topics/intense-pulsed-light-therapy