Neem Mouthwash (2 Pack)Unlike conventional mouthwashes that can disrupt your mouth's natural microbiome, our neem mouthwash promotes balance and supports your natural defenses. Instead of using multiple synthetic preservatives, like Big Mouthwash does, we use very little potassium sorbate (the same non toxic ingredient used to preserve wine) to keep the organic ingredients from experiencing microbial growth. It comes in a two pack of glass bottles, each 6. 6oz.