Oral-Microbiome Friendly Mouthwash Gem is the alcohol free mouthwash that loves your mouth's biome. Gem’s formulation is free of alcohol and full of natural wonders like Propolis and Neem that leave you feeling fresh and ready to conquer the day. SIZE: 500ml *All Gem products are free of the Nasty Nine, including parabens, triclosan, SLS and BS.