Only Penofin®'s hardwood wood stain can penetrate dense hardwoods that need nourishing and stabilizing. This unique formula penetrates deep into the wood fibers and does not create a surface film. Unlike high-solid wood stains that simply coat the surface, Penofin®'s hardwood finish, using sustainably harvested Brazilian rosewood oil, is the choice of wood experts who know that wood penetration is key to longevity and beauty. Penofin® allows wood to breathe, important in working with exotic hardwoods such as mahogany, teak, Ipe, Brazilian redwood and many other species. Only Penofin® penetrating oil finish can meet the needs of hardwood in fiber protection, penetration, stabilizing and nourishing.