Hi Rosie,
I make goat's milk formula for my "allgeric to everything" DD2 and have since she was 3 weeks old, she is 8 months now.
First goat milk formula is made not bought, it's made at home, I know there are alot of different recipes out there, my naturalpath gave me a very simple easy to make recipe that takes a very short time to make everyday.It does have everything that is needed for baby, has all the vitamins/minerals that regular formula has. has the sugar baby needs and the whole goats milk I use actually has chunks of fat in it.
It also cost about the same to make (after the first trip to buy all the ingredients) as regular formula each month.
HTH