Brightening SerumiS Clinical Brightening Serum (formerly known as "White Lightening Serum") is the key to unlocking even brighter skin. This lightweight serum inhibits the darkening of spots, provides controlled exfoliation and gently resurfaces the skin without causing inflammation. A highly active blend of Norwegian sea kelp extracts and powerful botanical acids lightens and delivers anti aging benefits, smoothing out fine lines and wrinkles.