ISDIN Fusion Fluid is a high-protection SPF 50+ sunscreen specially formulated for sensitive and atopic skin. This mattifying, oil-free formula contains hyaluronic acid and provides very high UVA/UVB protection while being non-comedogenic and suitable for daily use. The product features a lightweight, fast-absorbing texture that leaves a shine-free finish without drying out the skin. It should be applied generously to dry skin 30 minutes before sun exposure and reapplied every 2 hours or after swimming, sweating, or towel drying. The formula is specifically designed to protect sensitive and atopic skin while providing hydration through hyaluronic acid.