100% high linoleic acid walnut oil, completely natural and food safe. There are no chemical driers. The oil has been heat-treated to make the oil dry faster and to remove any possible allergens. Linoleic acid is a particular acid that is naturally found in walnut oil. It is a stabilizing agent that makes the oil’s shelf life longer than other natural oils. The oil penetrates deeply into the wood and becomes a permanent part of the wood. Recommend one heavy coat. Apply with a brush or paper towel. Let soak in and wipe off any excess.