Allen Carr clinics are the most successful smoking cessation clinics in the world and have been established since 1983. The Allen Carr Organisation has a worldwide network of clinics across the globe in 100 locations and 38 countries. Worldwide, Allen Carr Clinics treated in excess of 45,000 smokers last year alone. Based on our three month money back guarantee, the success rate at all Allen Carr clinics is over 90%.