I was reading on here the other day, and I saw someone said the active ingredient, and how to cap your own. What is that active ingredient, I think it started with an "A", but I'm not sure though. Also, what else would I have to do, to make it work as good as NO2, and where can I buy the caps, and how much of the ingredient do I put in the cap, to make it work effectively. Thanks for the info.