Thanks for using Petco Pet Education Center, formerly Petcoach. I don’t see anything overtly dangerous in them, though the green tea could have a little caffeine. In general, it probably didn’t hurt Cocoa but it’s not the best choice for a treat. Stick to dog treats in the future- especially if you’re not sure what something is because there are few things that are very dangerous to dogs (xylitol, macadamia nuts to name a few).