Hemp Oil is all natural derived from hemp seeds. Use it on all porous surfaces such as milk or chalk painted pieces, raw or stained timber. Hemp oil is perfect to provide you with a water-resistant finish. Use it to revive and rejuvenate old timber or restore lustre of cast iron. 100 % food safe, it is perfect for kitchens to use on wooden bench tops of chopping boards. Once cured, it does not give an oily residue or surface film that will chip or scratch. It dries to a lovely matte and durable top coat. Use indoors, and outdoors. 250ml covers approximately 3-6sq meters.