The Medieval Soup Ingredient That Can Still Beat Your $150 Serum

Tatevosian Yana/ShutterstockIn a world where everything from spinach to shower heads promises to detoxify, it’s oddly soothing to meet a plant that earned its stripes without hashtags, but in battlefields and soup pots.Calendula officinalis, the modest pot marigold, was patching people up a long time before it was squished into pastel-labelled serums.