Thai Deodorant Stones / Lafe's Natural Deodorants.
These natural deodorant stones attack the bacteria that cause those nasty smells. They don't clog the pores of the skin and so allow it to breathe naturally and won't leave any toxic residue or nasty chemical by-products on your skin.
They don't stop perspiration or cover up odours with synthetic perfume. Instead, they leave a tiny layer of mineral salts on your skin which attack the bacteria that cause body odour.