Essence is a solvent used to thin out lusters or gold if they become too thick. Mix a very small amount in with your lusters and restore the proper painting consistency. For gold, mix just a drop at a time until you get to the proper consistency for smooth application. Supplied in 1/2 ounce bottles. Use in a well ventillated area and keep away from open flames. Keep away from children. California residents see Prop 65 Warnings