Dot & Key Watermelon Cooling Sunscreen SPF 50+ PA++++ Protect your skin from harmful sun rays with the Dot and Key Watermelon Cooling SPF 50 Sunscreen. This lightweight, oil-free formula is perfect for oily and combination skin types, absorbing quickly and leaving no white cast. Packed with hydrating watermelon extract and hyaluronic acid, this sunscreen cools and refreshes your skin while providing broad spectrum SPF 50 protection against UVA and UVB rays.