The new powerful anti-ageing super serums to know Joanna Taylor There is an endless stream of beauty innovations changing the game faster that we can click *add to basket*. But what’s really worth slathering onto our skin? Serums, the height of beauty technology (and one of the very few products most dermatologists say we mustn’t live without), flood the market with more claims than we can count. From encapsulated retinoids to the many variations of antioxidants, it’s a minefield. To make hunting out the best of the best simpler, here’s our pick of the latest and greatest age-defying products - and the ingredients that make them special.