We’ve been led for so long to believe that gold is in the science. It’s in the DNA of peptides, with their baffling names; in precious serums, that cost as much as jewellery; in light-reacting moisture. But not all promising skincare ingredients are cutting-edge, with one of the most hyped-up trends of recent times looking hilariously basic. Beef tallow, stripped of the cattle, whipped into a balm and smothered onto the skin from grandmother’s pantries to influencer pop-ups, it’s divided
