Question about Roots/blooming and beneficial bacteria

If I'm past..around the first month or so of bloom, is it too late to use something like Voodoo Juice, or Piranaha? Just because I read that it is best to use the first couple weeks of veg, and the same with bloom. But is that just preferably or will it still make a good impact with using it this late? From now on, i'll be using it from the get-go.

(I know plenty have, but..)Anyone else ever looked up Voodoo Juice? From the vids I saw it looks to have some amazing results.

P&P!

guess my old dumb question will go forever unanswered.too late now, but thanks anyways everyone.