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When a 5-year-old can't stop smelling your arm and rubbing her cheek against it, you know you're onto something good. Ahava's Multi-Vitamin Dry Oil in Mandarin Cedarwood is going wherever we go this summer. The oil blends well into freshly showered skin, and with major antioxidants like omega-3 and omega-6 (and something we've never heard of called Dunaliella algae extract), it just might be a youth serum too.