Disclosed is an insect repellent composition. The composition has an amount of an insect repellent active effective to repel insects when the composition is applied to the skin, and an amount of a urethane polymer sufficient to form a film on the surface of the skin. The composition also has a cosmetically-acceptable...http://www.google.es/patents/US7150878?utm_source=gb-gplus-sharePatente US7150878 - Extended duration insect repellent composition and method of application to the skin
Extended duration insect repellent composition and method of application to ...
