Developed with dermatologists, retinol boosts the cream's 15-day SPF Neutrogena effectively fights the many visible signs of aging for una Visibly younger and healthier skin. This formula includes SPF 15 to protect against the harmful effects of UV rays, benefiting from the regenerative properties of retinol. Retinol may increase skin sensitivity to the sun. Please note that this cream does not replace una Sunscreen. If you're going to be exposed to the sun for a long time, it's advisable to use additional sunscreen.