Too much garlic could be bad for your dog but garlic is not toxic.-it is used frequently. It's said that garlic can act as a repellent for mosquitos and bugs. I've used the brewer's yeast w/ garlic with Kayla in the past for several years.
We now use the following Springtime Inc. product.
Springtime Bug-off Garlic Chewables
We now use the following Springtime Inc. product.
Springtime Bug-off Garlic Chewables