Seal It Green Extreme Garden Box helps seal and protect all wood types including cedar, bamboo, redwood, pressure treated, Ipe and other wood types. Its premium, professional grade ingredients, penetrate deeply into the wood and bond with the wood fibers. Our ingredients are easy to understand. Tree And Nut Oils, Plant Derived Carrier, Cashew Oil Penetrant, Coconut Derived Surfactants. CONTAINS NO Pine Oil, Linseed Oil, Petroleum Oils, Heavy Metals/Metals or other toxic oils. Used by professional growers who are bound by strict soil contamination testing requirements. Seal It Green Extreme Garden Box is plant safe and will not contaminate your gardens soil. It will also allow the wood to gently age to a beautiful silver patina. If you want to keep the natural look of the wood without silvering, try our Seal It Green Extreme Total Wood available on Amazon.