Dermalogica powerbright dark spot serum 30 ml. New without box. Original price £99 Powerbright dark spot serum starts fading dark spots in a week, and continues to diminish them over time. It also brightens and boosts skin’s natural luminosity. Light-diffusing technology begins to balance the appearance of uneven pigmentation after one use, and continues working overtime. Clinical test results: 1 week - starts fading dark spots 4 weeks - begins reducing dark spots’ size 8 weeks - reduces the number of dark spots