i just brought home two puppies, one infested wit ticks the other infested with fleas, within two days of using the DE they are both clean, i use on their fur and internally, we use no chemicals in our house or food, we also BARF our dogs, we also give them apple cider vinegar in their food, helps with acid/alkaline levels. i also use the DE watered down on my veg and flowers against ants and greenfly, it really is very good.
ciao
d
xx