This device may help fade mild acne dark spots and surface pigmentation, but we cannot guarantee permanent removal. Results vary depending on your skin type, the depth of the pigmentation, sun exposure, and whether new acne continues to appear. Please do not use it on active acne, broken skin, irritated skin, or inflamed areas. Start with the lowest setting, do a small patch test first, and always wear protective goggles. For deep, severe, or long-lasting acne pigmentation, we recommend consulting a dermatologist.