Dr. Bronner's soaps are all certified under the USDA National Organic Program by Oregon Tilth: We source all the core soap and essential oils organically, not just minor additive ingredients, in order to support and encourage sustainable agriculture, farm worker health and ecological processing methods. All our bottles are made from 100% recycled PET plastic (a project we pioneered in the industry) and our bar soap wrappers are 10% hempflax / 90% post-consumer recycled paper.