Left untreated and exposed to the elements, natural teak will mellow from its honey brown color to a warm silvery gray or even dark gray over time. Our Teak Cleaner cleans and brightens outdoor teak furniture in one simple step, restoring its original finish. The eco-safe formula uses nanotechnology to penetrate deeply into the wood, protecting it from moisture and harmful UV rays, while allowing the teak to breathe for long-lasting results.Teak Cleaner features: