All I will say is that as a LEO, who used pepper spray and had pepper spray used on me, I do have a little knowledge of what is in the canister. I do own several cans of bear spray and all one has to do is read the contents and you will see the basic ingredients are one and the same.
Now, IMO, a gun dealer who can not sell guns in California, but trying to stay in business, will say most anything to make a living. The size difference in the canister is due to "state" laws regulating how much you can carry for self defense with human pepper spray, nothing to do with the makeup of the contents.
