looking into buying a bloom boost. any recommendat...

Totally off your list but I recommend trying some maxibloom. It is pretty much stand alone.

I use Bio-Bloom and Top-Max 👌 Good grow 👍

I've used Big Bud in the past it worked wonders but it's not a stand alone nutrient for producing big flower. You'll need B-52, bud factor and sensei bloom.

@Fruitgrower Hi mate they are all basically the same thing with the same ingrediants just with different hype and marketing techniques. I would personally go for any of the brands that do not have any of the bad pgr's in them or organic is even better like guano. https://www.marijuanabreak.com/plant-growth-regulators-in-weed