TB-4 is on the prohibited list
Standard reference range for serum magnesium: 1.7 to 2.2 milligrams per deciliter (mg/dL) Serum magnesium 27 percent: Functional deficiency What to consider if your results are out of range: If you're low in magnesium, prioritize intake of magnesium-rich foods such as dark greens (spinach, swiss chard), nuts (cashews, almonds), seeds (pumpkin, chia), legumes (black beans, edamame, lima beans), certain whole grains (quinoa), and dark chocolate (75 to 80 percent cocoa)
In such cases, B12 injections bypass the gastrointestinal tract, directly increasing vitamin levels and helping alleviate symptoms like fatigue and neurological issues
"Vitamin B12"
Ka D et al
For instance, I could start promoting BS-2025 and say it has potent anti-aging effects, revs up your immune system, increases muscle mass, libido and sexual function