Shortly before China’s Singles’ Day shopping festival last autumn, beauty company Yatsen launched a new serum featuring PDRN, one of skincare’s hottest regenerative ingredients. What shoppers did not see was how quickly it reached shelves. Yatsen used artificial intelligence to compress a development cycle that typically takes more than two years into just six months, including helping researchers narrow more than 50 ingredient candidates to three in a single week. AI is rapidly reshaping...