If you could change one things about your skin, what would it be? Rodan and Fields are the two dermalogists who developed the award-winning acne product, Proactiv. These two doctors have added to their skincare line products for these skin conditions: sun-damaged skin, brown spots and dull skin; aging of the skin in your eyes, lips, face, and hands, acne and acne scars, sensitive skin including rosacea, eczema and psoriasis. These are bottom of the bottle guarantee.