Fat and The Moon Lavender & Cocoa Dry Shampoo is perfect for light brown to dark brown or black tresses. The shampoo is made of cocoa powder, arrowroot starch, kaolin clay, and lavender essential oil. It's easy to apply to the hair root. Simply part your hair and apply the powder using a brush. Beware of the seductive combination of lavender and chocolate – it might send you on a chocolate binge!
made me think that it might not be a bad idea to look into alternatives. As for cornstarch, it's a great talc replacement as long as your baby doesn't develop a yeast diaper rash (apparently relatively common) in which case you're actually feeding the yeast with the corn starch. Also, the majority of corn starch used in baby powders are going to be from corn that was conventionally grown with pesticide use and is genetically modified.