Dark Circle Serum is clinically tested remedy for dark circles. It was launched in year 2009 by one of the leading anti-aging cosmetic Wrinkle System. The best thing about this product is that it is clinically tested to reduce dark circles, eye puffiness and wrinkles under eyes. Clinical tests proved that it reduces dark circles by 35%, eye puffiness by 31% and bring an overall smoothness to skin by 41%.Dark Circle Eye Serum.