I am making baby soap and I want it unscented meaning not EO or FO. I would like to have just a faint hint of something. It doesnt have to be recognisable. Just not completely unscented. Which additives would give unscented soap this kind of very mild scent? For example, I love the way cinnamon powder adds a beautiful mild scent to unscented soap but its really not cool to do that to a baby. I was soooo hopeful strong chamomile tea would do the trick but from other soapers have told me its not going to help. Any ideas folks?