Apply the SEOUL 1988 Collagen Sun Lotion every morning as the last step of your skincare routine, on clean and hydrated skin. Use a generous amount (about two fingers) on the face, neck, and décolleté, then spread evenly by gently patting to help absorb the collagen. Reapply every 2 to 3 hours during prolonged sun exposure to keep your skin protected and plump, K-Beauty style.