It's not an additive. It's their own mixture of GB soy with a certain % of additives that they will sell exclusively. I understood it is suppose to help with frosting, adhesion, air bubbles, smooth tops and have a good scent throw. I have not tested it with color, so I can't vouch for frosting, yet. I'm not real sure about the scent throw, either. The one container I did use with it, was pretty. It has smooth top, good adhesion to the jar, no air bubbles and I didn't have to do a second pour. HTH SouthernGal