Paula's Choice Resist Intensive Wrinkle-Repair Retinol Serum is an exclusive formula that utilizes a proprietary blend of highly stabilized retinol, potent antioxidants, and anti-aging ingredients. Its soothing, silky texture goes to work immediately to help skin of any age look younger. Anti-irritants reduce redness and soothe sensitive skin. With ongoing use, you will see smoother skin, with an improved appearance of wrinkles and skin tone. This product is 100% fragrance- and colorant-free.