Interesting... I too, have been questioning the garlic content in my dogs treats - very recently, in fact. I have read up on this topic, and the literature claims that this ingredient is not good for dogs, but have been otherwise informed that small quantities are ok (there is no onion in the ingredients).
I have found what seems to be a very good treat for my dog. It is holistic, and comes in a variety of types for skin, joint, intestinal/ digestion, etc...The quality of my dogs skin has improved noticeably since I started her on these treats, and I am now trying out a new type of biscuit(same company), geared at joint issues.
She just loves these treats, and hopefully I will see improvements - even if they are small ones