Biotherm Life Plankton Eye Cream, 15 ml, Eye Creams and Gels for Women, The Biotherm Life Plankton eye treatment is for the skin around the eyes and gives it much-needed nourishment and hydration. Characteristics: makes your eyes look youthful gives the skin elasticity leaves skin tight and smooth ophthalmologically tested How to use: In the morning and/or evening, apply the product around the eye contours by dabbing lightly until fully absorbed.