"I use a mixture of apple cider vinegar and water for deodorant," Erin Rhoads of The Rogue Ginger explained. "Apple cider vinegar aids in the killing of microorganisms that generate body odor." Rhoads also said that she mixes 2 tablespoons of vinegar with 8 ounces of water to make a paste that she applies every other day under her arms. She added that she has been doing this for about three months now and there is no smell at all. The truth is that underarm odors are not necessarily related to bacteria, but rather they can come from any number of substances found in our bodies. Bacteria play a role in producing some types of smells, but others are caused by hormones, enzymes, fat, and proteins. So if you want to know whether or not apple cider vinegar gets rid of armpit odor, then the answer is yes, but only if you mix it with water and apply it regularly. Also, be aware that underarm odors aren't always related to bacteria, so even though using ACV may help reduce them, it doesn't mean they will go away completely if you stop using it.