This is a very nice gentle product made from natural ingredients. Most of us found it moisturised the eye area well, though only one person said they found it made a noticeable difference to dark circles.
On one person, who often has problems with eye treatments, the product did irritate and made her skin slightly blotchy and itchy. Best for those who have dry skin and not recommended for those who have sensitive skin around the eyes.
November 2013 Update: This product has been discontinued, similar products from the Molton Brown range are Vita B3 Eye Concentrate and Bright Vita Eye-energy Serum.