Skin'N Sleek™ Spark 19 has 5 adjustable light intensity settings (1-5) to ensure a gentle treatment across different skin tones (white, beige, light brown, mid brown and dark brown) and body hair colours (dark blonde to black). Skin'N Sleek™ Spark 19 IPL treatment is not effective on red hair, grey hair or light blonde hair. Nor is it suitable for black skin, as it can cause skin damage. Check the skin/hair type chart down below to see if Skin'N Sleek™ Spark 19 is suitable for you.