Our unique expertise. For 40 years, our team of more than 400 scientists and experts has been at the forefront of baby nutrition research. Inspired by this, our research has enabled us to develop our patented Aptamil infant formula with Pronutra Advance. This is especially adapted to the needs of your baby at each stage of their development. Patented formula. The unique Pronutra Advance formula combines our special nutrient combination with an innovative manufacturing process.