Bloom Boosters can be helpful - but getting good nugs is mainly about genetics, light, and environment.. among others but if you are feeding a decent base regimen of nutrients, I wouldnt break the bank - if you got money to spend than go for it but don't expect it to be a miracle worker. Ive used similar bloom boosters from Fox farm (their powder soluble trio) with minimal results in my opinion. They help - but not much.