Both study formulas were identical in appearance and supplied with two identical pump dispensers. One test
formula was applied twice a day on the subjects’ right face and the other one on the left face. Products were applied
by clinical staff from Monday to Friday and by subjects themselves on the week-ends. These applications
were performed in the morning and evening (with an 8 hour break), for a period of 12 weeks. Throughout the
trial period, all subjects were required to use the same face-washing products and prevented from using new
face-care products. All patients were instructed to avoid sun exposure and to not use any sunscreen.