UK: Mother Dirt, the Boston-based microbiome company, is expanding country-wide into luxury UK retailer Harvey Nichols, alongside an interactive pop-up at the store’s flagship in Knightsbridge. Through shifting the definition of “clean” away from sterile and toward a healthy, balanced biome, studying the past allowed Mother Dirt to reimagine a future for skin health that’s holistic and filled with good bacteria—the way nature intended. The Mother Dirt pop-up will be open at the flagship Kn...