Powders are often considered "sneaky" (in magick) since they can be used and applied very subtly. Powders can be made of herbs, roots and resins.
Sandalwood or orris root powders serve very well as a soothing body dusting powder.
Sometimes the definition of the powder needs to be made certain. For example, a white powder called mastic is really talc with tiny bit of mastic ground in. Real ground mastic is much different.