I thought I'd let you know a compilation of the different options that I've found in my research so far that are safe:
1. Rubbing dry baking soda under your arms or make it into a paste with water and rub under arms (can add essential oil for scent)
2. Dr Mist
3. Burts Bees Herbal Deoderant
Other brands offering safe non toxic products apparently (still check the ingredients list to be safe):
Dr Hauschka, Living Nature, Sumbody, Jasco, Miessence
If you look in a health food store, check the ingredients are all natural as I'm sure there are others also. Especially avoid Triclosan, aluminium and Propylene glycol ingredients in deoderant and ANY product.