Quick question: Is "BH Booster" exactly equivalent to "Equilibrium"?

Due to my current weakness in understanding water chemistry (which I am working on and experimenting with), I am having trouble determining just how closely the "Barr's GH Booster" and "Seachem Equilibrium" match chemically. Are they essentially interchangeable? Do they affect GH and Alkalinity the same?

I know this is a bit of a dumb and lazy question, but I am not sure if I am understanding my test results correctly or not, and I have just run out of Equilibrium and have a bag of GH Booster on hand!

Thank you very much.