Avène is a line that has mastered skin care for those who have sensitive skin, so its Ultralight Hydrating Sunscreen Lotion SPF 50+ ($28) is perfect for anyone prone to allergic reactions to SPF. This sheer milk is safe to use for everyone 6 months and up and offers hydration as well as protection, as it's infused with Avène's signature Thermal Spring Water to soften and soothe the skin.