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B12 is water-soluble, and its generally safe even at very high doses
B Complex Injection Dosage Strength: Each ml contains: B12 (cobalamin) 10 mcg, B1 (thiamine) 10 mg, B2 (riboflavin-5-phosphate sodium) 5 mg, B6 (pyridoxine HCl) 5 mg
Your baseline B12 level, sleep quality, and overall nutrition influence timing
Others simply want additional metabolic support while continuing to focus on exercise, nutrition, sleep, and strength training
Not enough B12 comes with some serious side effects
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