This high-protection Sun Serum from Isis Pharma, part of the Uveblock line, offers advanced defense against sun exposure while delivering extended hydration benefits. Formulated with a high Sun Protection Factor (SPF 50), it is ideal for daily use, ensuring your skin remains shielded from harmful UV rays throughout the day. The serum format provides a lightweight, easily absorbed experience suitable for layering under makeup or for wear on its own, offering 8 hours of continuous hydration alongside superior photoprotection.