Evens skin tone with results equal to a leading prescription ingredient. Guaranteed. Dermatologist-developed to be safe, comfortable. Yet in clinical trials our serum was comparable to a leading prescription ingredient in visibly reducing dark spots- a verified 58% improvement at 12 weeks. For all skin tones: See results starting in just 4 weeks, with a visible reduction in age spots and acne scars. Also appropriate for backs of hands and chest, too. Made in USA. 3.4 oz.