Has anyone ever used Yucca shampoo for fleas?? I use a Shampoo that has Yucca extract in it and it is safe to use on the youngest of puppies since it is not a chemical and I have never had a problem with fleas!! I had a friend who had a pup with fleas and I used this on her and it got rid of the fleas - you just concentrate it a little more for fleas and it leaves their coats so soft. Just a thought