Lavender Oil, 1/2 ounce. Lavender Oil is a natural oil distilled from the buds of lavender plants. Our oil is all natural and has no synthetic additives. It is used when painting lusters and golds and is used to mix with Balsam Copaiba Oil as a painting medium. It can also be used as a thinner for other mediums. Some people use it to thin Roman Gold and as a brush cleaner. California residents see Prop 65 Warnings