Hawaiian Tropic Mineral Sun Milk SPF 30 The new Hawaiian Tropic Mineral Sun Milk SPF 30 (£15) is silky, lightweight mineral sunscreen (the active ingredient is zinc oxide) that is not only reef friendly, but also sensitive skin friendly (although, we still always recommend patch testing any formula if your skin is ultra-sensitive). And thanks to the addition of coconut and kukui nut extracts, this liquid sunscreen also helps lock moisture into the skin. Image Source: boots.com Hawaiian Tropic Mineral Sun Milk SPF 30 £15 from boots.com Buy Now