Kiehl's Powerful-Strength Dark Circle Reducing Vitamin C Eye Serum is a clinically tested under-eye treatment formulated with 10% Pure Vitamin C, Tri-Peptide, and Hyaluronic Acid. Designed to visibly diminish both blue and brown dark circles, the serum targets the appearance of puffiness, fine lines, and crow's feet around the delicate eye area. In clinical studies, results were observed in as few as 7 days of consistent use.

The lightweight, layerable texture smooths and hydrates the under-eye area without heaviness. It is dermatologist and ophthalmologist tested, and is free of parabens and added fragrance, making it suitable for sensitive skin. To use, apply morning and evening after cleansing by gently patting and smoothing the serum along the sub-orbital bone under the eye area.