Synergy Organics Fresh Kiss Mouthwash - Citrus - Contains a unique formula of organically grown essential oils so powerful it destroys the oral bacteria responsible for dental decay, gingivitis (gum disease), and halitosis (bad breath), but so gentle it won’t dry or irritate the mouth the way many commercial mouthwashes do. The unique formula has a synergistic effect which makes it much more effective than cosmetic (non-therapeutic) mouthwashes which temporarily mask oral odors. The potency of this product requires it to be contained in glass rather than plastic bottles. So when you see the glass bottle, you know you’re getting the most effective formulation. When you want the best for your mouth, look for the glass!