I use hydrogen peroxide to antique/patina the iron parts on various rifles.Anytime I see a thread with "what's the best _______?", I expect it to be long and turn snarky before it dies.
I hadn't fooled with a ML in close to 30 years until this year, so take this with for what it cost you. For cleaning I use a 1-1-1/2 mix of hydrogen peroxide, isopropyl alcohol and Murphy's oil soap. It seems (in my opinion) to work better than the hot soapy water I used all those years ago.
Now, to fix some popcorn.
Those active extra ions tear right into that steel surface opening it up to receive the oxygen molecules so fast that it would take years of exposure for that to happen naturally.
50 yrs ago I mixed 1:1 (original GoJo handcleaner) with a 50/50 mix of 70% alcohol and water…good for swabbing, patch lube and shining my boots.