I went to our health food shop the other day and asked them about baby sunscreen and the naturopath there said that you shouldnt use anything on them untill they are about 4 months old. it has something to do with their pours and needing them to not be blocked.

She suggested just keeping them out of direct sunlight and/or having them covered in a wrap of some sort when in the sun. I think I am going to just go and get some baby sunscreen though and use it on Victorias legs and arms and see how we go, living in qld you dont want to take any chances. We spend alot of time at the beach too and her little legs poke out from the babybjorn carrier.
We havnt been to the beach with her yet though. Maybe this weekend?