available in 500 mcg, 2500 mcg vials Tablets/Capsules: Dosages from 50 mg to 5000 mcg, depending on vitamin type and brand B Complex Tablets: Typical blend of B1 50mg, B2 50mg, B3 50mg, B6 50mg, B9 400mcg, B12 500mcg, Biotin 30mcg, Pantothenic Acid 50mg Sizes Injections: 1 mL ampules/vials, 10 mL multi-dose vials Tablets/Bottles: 30, 60, 90, 120, 180 count bottles Gummies/Chewables: 60, 90 count bottles Travel Packs: Pocket-sized daily vials or blister packs for convenience Precautions Professional Administration for Injections: Only given by or under the direction of a healthcare professional
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However, the effectiveness of B12 injections may vary from person to person
it is brought on by a lack of vitamin B12 in the diet or poor absorption
Increasing your vitamin B12 intake can protect against deficiency to prevent these side effects
Competitive athletes should be aware of WADAs S0 prohibition on non-approved substances
