Skinceuticals Sheer Physical UV Defense SPF 50 Sample/Travel Size 6 pack by SkinCeuticals. $25.00. matte sunscreen. sunscreen transparent zinc. sunscreen sensitive skin. transparent, mattifying fluid provides broad spectrum protection for all skin types (even very sensitive) with 100% physical filters, this lightweight sunscreen increases skin defenses and resistance to UV and heat stress. The weightless fluid spreads evenly and dries quickly, leaving no residue.