Obagi Professional-C Eye Brightener Serum has the following features: Helps reduces the appearance of fine lines and wrinkles and dark circles under the eyes. This refreshing serum minimizes the signs around the delicate eye area while boosting the skin’s natural antioxidant defense. CAUTIONS : Hydroquinone (HQ) and Tretinoin / Retinol products should not be used by pregnant women, women who intend to become pregnant in the near future, or women who are lactating/breast feeding. Test for skin sensitivity before using by applying a small amount to an unbroken patch of skin and check within 24 hours. Minor redness is not a contraindication, but where there is itching or vesicle formation or excessive inflammatory response, product should be discontinued and physician consulted. Close supervision is recommended. Sunscreen use is an essential aspect of HQ therapy because even minimal sunlight exposure sustains melanocytic activity. Avoid contact with eyes, nose, mouth, or lips. In case of accidental contact, rinse eyes, nose, mouth, or lips with water and contact physician.