This month, Pai not only got a brand new look (new logo, new product names, new more sustainable packaging), it also introduced a new product: the Pai Instant Kalmer Ceramide Serum (£49). Made with three different plant-based ceramide molecules and sea aster, and free of any potentially irritating essential oils or synthetic fragrances, this serum truly lives up to its name. Thicker than your average serum, the lightweight gel feels calming and soothing on your skin, leaving it softer, plumper, and even less red than it was before you put it on. After testing it out for a days, this serum has officially landed a permanent spot in our medicine cabinets.