Not think KNOW. Check this link for lab reports on several additives including Bushmaster & Gravity
http://www.integralhydro.com/flowerdragon.html
Bushmaster: 271ppm Paclobutrazol
Gravity: 516ppm Paclobutrazol
Bushmaster also has some other cancer causing crazy ass shit in it. F humbult county's own. If someone faked this whole site & lab reports, well done. Mission accomplished, ill never be using those products.
Never seen anything claiming AN uses that sort of thing, if you have please share. Id love to see it.