Can someone tell me what is the difference for this 3 ?

Nan opti pro 3, Nan gro 3 and lactokid 3 are the 3 baby dry milk product that is presented by Nestle for the better growth of the kids. The community website is having the question in which the asking is about the https://www.assignmentmasters.co.uk/ difference in between these 3 products and someone asking about these.