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Anyone who understands that their body utilizes B12 injections at a rate of more than EOD has disproved those studies

As of July 26, 2026, 21 CFR 216.23 lists six substances that can be used through this pathway: Brilliant Blue G, cantharidin for topical use only, diphenylcyclopropenone for topical use only, N-acetyl-D-glucosamine for topical use only, squaric acid dibutyl ester for topical use only, and thymol iodide for topical use only

However, glutathiones production naturally declines as we age, much like collagen

Some of the most brilliant and prolific neuroscientists that I know who've had very long careers, Eric Kandel, Nobel Prize winner at Columbia, comes to mind for all his work on memory, used to swim a mile a day, and now I think swims half a mile a day