Looking at Aptimil 3 (online as only can cope with online shopping a t the moment, lol) it says 6months up. We're planning on moving the twins to it, especially as it's included in the 3for2 offer boots have at the moment and you get advantage cards points buying it.
They are 6 months on monday so using up what we have left, inc cartons, maybe we should hold some back just in case! They were quite happy with moving onto number 2 for bedtime though so should be ok.
Though, they've never wanted 7oz in a feed, struggle to get 90mls into William at night, whichever milk is offered.
Mum to a toddler & baby twins