According to their website, the strength of the CH is listed as 40mcg/ml, which makes sense. However, if they can't get the labels right on their bottles or boxes (they show 40mg/ml), I'd be a bit hesitant about running their stuff. Typos do happen though, I guess...
OP, I am not going to post a link of an UGL but if you do a browser search for the full product name, the website will pop up and the directions for use are clearly stated.