The ingredients in mine are a combination of raw, and steam distilled, in an olive oil base. I don't know if the manner of extraction helps, or not. It's called Hemp Complete by Bluebird Botanicals.
Mind you, it might just not be effective for all dogs, the same way that not all medications are equally effective for all people.
Has there been a change in appetite?
It's both frustrating, and sad, when we try to help them as they age, and can't quite make the difference that we'd like to.
Love All Life, Thank You For Posting! :)