Aptamil Pepti 2 800g. Aptamil Pepti 2 supports a restricted, cows’ milk-free weaning diet for babies over 6 months, and includes extra calcium, vitamin D and iron. It is also made with 100% whey protein. It is similar in composition to Aptamil standard Follow On milk, apart from the protein which has been broken down (extensively hydrolysed) to make it less likely to cause an allergic reaction.. It also includes lactose for improved taste, to help your baby enjoy each feed and support weight gain. Aptamil Pepti 1 and 2 are the only extensively hydrolysed formulas to contain Galacto- and Fructo-oligosaccharides (GOS/FOS), long chain polyunsaturated fatty acids (LCPs) Omega 3 and Omega 6, and nucleotides