This corrector is clinically proven to reduce up to 74% of the intensity of brown spots without causing nearby skin discoloration, brighten complexion, lessen the appearance of brown spots caused by sun exposure and age, help prevent further UV skin damage, and leave skin looking young and healthy. The roll-on applicator allows users to easily treat the problem on the spot with no waste and product loss. For more information, go to their main website: http://www.marcelle.com