Jess Edelstein and Sarah Ribner are the creators of PiperWai, an all-natural deodorant made from activated charcoal. Instead of harmful ingredients, Piper Wai is made of tapioca starch and coconut oil, among other natural ingredients, and it works. The only drawback (in some consumer minds) is that the creme must be applied by hand. But since appearing on the hit television show Shark Tank, with the help of investor Barbara Corcoran, PiperWai are now are now working on a stick applicator. Yes!