Description: ISDIN Solar Allergy Protect SPF50+ gives very high protection against damage induced by UVB/UVA radiation and blue light, formulated with Ectoin and niacinamide for skin prone to sun allergy. how to use ? Shake before use and apply generously to dry skin 30 minutes before sun exposure. Reapply every 2 hours and after sweating, swimming or towel drying.