We use the Gaia brand here too and it's lovely. Just few drops in the bath of the baby bath product is enough, you don't need to use a separate shampoo and conditioner. If your bub gets cradle cap an organic almond oil rubbed into the scalp at night and washed off the next day works a treat. As for nappy rash creams I don't do the "preventative' method. I change my DD bot often so she is never left in a wet nappy and the only time I use a cream is when her bot gets sore (like when a new tooth comes through) and again the Gaia brand is great for this. Plain old cornflour works too, but really, the best remedy is to leave your bub kick around without a nappy to let the skin air out a bit.

Good luck, and remember to take your own baby products to hospital as many birthing units are supported/sponsored by Johnson and Johnson so the only products available for you to use are J&J.