Aptamil Pepti Junior 450g Powder Formula Aptamil Pepti Junior 450g is suitable for babies with confirmed cowsâ?? milk and/or soy protein allergy. Nutritionally complete for formula fed infants 0-6 months and suitable for use in a mixed diet for infants 6-12 months. Specially developed and researched for formula fed infants with food allergies and intolerances such as cowsâ?? milk and/or soy protein allergy as well as malabsorptive conditions, including diarrhoea. Extensively broken down (hydrolyzed) cowsâ?? milk protein which has been broken down to small hypoallergenic peptides. A specialized fat blend with medium chain triglycerides for more efficient digestion and absorption.