Most all that crap with a high price tag for extra bloom power is just sugar in a bottle. I have run sugardaddy, g.o. bloom enhance crap, vitamins, some two or three labeled as terpenator or some such. against reg nutes and molasses they all look the same.
I gave away samples from stuff I used different 'additives' on and nobody can tell any difference. I didn't get to scientific but did test several against plants using exact same mutes without additive.
I can never find a difference with any of it. There are plenty of two part formulas that work good. Or mixing your own soil can be rewarding. After the first couple fuck ups you'll know what works and doesn't just by reading plants you grow often. If your throwing new nutes with new plants you never really know if its the supplements.
I judged the ones I used with clones of the same Mom in the same room. I like to bust the guy at the hydro stores balls about all the garbage he sells. He knows it too but there is money in it.
Mike- silica I have heard does help with resistance to insects. I have thought spraying it would be less beneficial than more as it looks like crystals when dry and I would think it could effect the leaves from breathing? I've used dyna-gro 0-0-3 silica outdoors holding it would add disease and mold resistance. I never seen any difference. Indoors as well. If your plants are healthy they should shine and be resistant. Indoors if your having bug issues its laziness. Daily maintenance and close watch and cleanliness is better than anything you can buy.