Dr. Bronner's Peppermint Castile Bar Soap is our most popular fragrance. The peppermint essential oil tingles the body and clears the mind. Therapeutically used as a mild stimulant, peppermint oil increases vitality and clarity. All soaps are certified organic under the USDA National Organic Program. All soaps are also certified Fair Trade. Wrapped in 10% hemp-flax/90% post-consumer recycled (PCR) paper.