B12 can push detox.. that's the yasko line... although I would be surprised if it did it on its own, without folate, UNLESS you're taking methylcobalamin.
If it's detox, think binders, binders, binders... pectasol, activated charcoal.. I also use EDTA Complex and OSR1.. but they're chelators... and in some camps that's controversial.
Basically if you're mobilising toxins.. you wanna bind them so they exit the body without being reabsorbed or causing more damage.