Frontline Plus provides fast, effective and convenient treatment and control of fleas and ticks for cats and kittens 8 weeks or older. Research demonstrates that Frontline Plus kills adult fleas, flea eggs, and larvae for up to six weeks. It also prevents development of all flea stages for up to six weeks and kills ticks for at least one month. A once monthly application is recommended where tick control is needed. Although Frontline Plus can control fleas for up to six weeks, if there is a high risk of reinfestation or if the pet has fleas which may cause flea allergy dermatitis, a one monthly application may be needed. Kills all stages of brown dog ticks, American dog ticks, lone star ticks and deer ticks. Frontline Plus remains effective even after bathing, water immersion, or exposure to sunlight.