TimberBright Pro is a unique blend of wood brightening acids and surfactants that when applied will substantially brighten the wood. TimberBright Pro comes to you in it's granular form... you supply the water (why pay shipping on water?) 30lbs of granular makes 60 gallons of ready to use solution (that's less than a $1.50 a gallon!). TimberBright Pro should be used after the chemical removal of any finish to neutralize the existing caustics on the surface. This also acts to restore the proper pH back to the wood (and even leaves the wood slightly acidic) which is an important step prior to applying your finish of choice.