I have a dog with really short hair so I can't use the traditional liquids because it doesn't want to absorb. So I go to www.earthanimal.com and buy the powder that goes on their food. She can't get enough of it!
Just incase you choose to go back to the traditional liquid what I do with my short haired dog who's hair repells liquid is to take a little brow shaver and shave a small spot on the back of her neck to put the liquid on and that works great.