Adams Flea Tick Cleansing Shampoo – Rich-lathering shampoo kills flea eggs in addition to fleas, ticks and lice. Prevents flea eggs from hatching for 4 weeks. Cleans and deodorizes, leaving a fresh coat. Contains 0.075% pyrethrins, 0.75% piperonyl butoxide and 0.086% pyriproxyfen. Apply shampoo to thoroughly soaked animal and lather; let stand for 5 minutes, then rinse. Repeat every 7-14 days. Do not use on puppies or kittens less than 12 weeks old.