I know your in soil silly, for some reason I had hydro on the mind.
I believe it is like molasses, I know they are sweeteners and I use them all the way through. They will also work in soil but you might want to use them afer the flush to not build it up in the soil. It is designed to boost macro nutrient production and help your plant finish off nice with more "nectar or resin" basically THC.
I got a few pics coming up, I have a couple of soil plants that I water with the runoff from my aero setup, so they get the same stuff the aero plants are. They are different ages though so there is a noticeable size difference.