To ensure your formula fed infant receives balanced nourishment, NAN COMFORT 1 has been specially designed to provide high quality nutrition. Starter infant formula. The protein source (whey dominant) is from cow's milk. Backed by more than 150 years of Nestle expertise. For hygiene and convenience, it is available in an innovative packaging format with a separate storage area for the scoop, and a semi-transparent window which allows you to see how much powder is left in the can without having to open it.