It is now recommended that you use plain water only for the first 6 weeks, and after that a mild cleanser if you wish. Anecdotally I can tell you that the two babies I have who were exposed to soap in the first 6 weeks both have eczema, and the other 2 do not. It's only a really short time and your babe will smell gorgeous as a baby should with no perfumes, plus the benefit of possibly helping their skin for a long time.