Kimiwa Usa, Inc. is a the leading manufacturing company located in Japan. Our unique products are made of horse oil for ultimate skin care that you can find.The most natural skincare! All made in Japan. Mayu oil was manufactured to contains very effective moisturizing ingredient call "ceramid" through our own timely process of filtering and refining. Though the oil which has evolved from horse oil to mayu oil originated from an animal, it is simply odorless yet has hydrophilic property, and also contains ingredients that will improve metabolism. There are no artificial ingredients added to the oil during our manufacturing process to provide you with a peace of mind.The horse oil is the closest thing to the human skin oil! The horse oil has the closest chemical compositions to the human skin oil. Fatty acid in horse oil is very similar to those found in humans. As a result, the oil will permeates the skin naturally to provide a smooth moisturized feel.