Safe and effective for metal partials, orthodontic retainers, mouth guards and dentures. Fast acting & powerful. Brightens & Whitens. Freshens & deodorizes. Removes plaque & kills bacteria that cause denture odor. Contains baking soda for added freshness. Fresh Mint flavor. Kleenite is 3X more powerful than tablets! Kleenite works quickly and economically to get your dental appliance cleaner, brighter and whiter. Super active oxygen bubbles clean tough stains while they help fight plaque and odor causing bacteria.