14. Stop the clock

Meet the made-in-Iceland anti-aging secret that blew up every beauty editor’s DMs when it launched. Bioeffect EGF Serum and EGF Eye Serum ($220 and $128, at Holt Renfrew, holt renfrew.com) contain barley seeds that have been pumped up with a collagen- and elastin-rich epidermal growth factor.