The Susumee Niacinamide Eye Serum is specifically formulated to target dark circles under the eyes, making it an ideal product for those looking to brighten and reduce the appearance of these dark circles. With a formulation containing caffeine, this serum is designed to be used daily and has a period after opening of 12 months. Suitable for all skin types, this unisex product is perfect for anyone looking to achieve a brighter, more refreshed look around their eyes. The 20ml bottle of clear serum comes in a regular size and is easy to apply to the under eye area.