Beaphar Insecticidal Shampoo for Dogs is a veterinary medicinal shampoo that kills fleas fast and helps prevent reinfestation. Containing permethrin, the shampoo kills fleas, while also cleansing and maintaining a healthy coat. Fleas will often infest the pets basket, bedding and regular resting areas, including carpets and soft furnishings. It is recommended that these areas are treated with a suitable household insecticide, like Beaphar FLEAtec Household Flea Spray, and vacuumed regularly. Suitable for dogs over 12 weeks of age. DO NOT USE ON CATS.