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VITAMIN B12 FOR YOUR HEALTH BENEFITS OF B12 HAIR, SKIN & NAILS With age you loose collagen in your skin and can end up with brittle nails

25 Castelli MC, Friedman K, Sherry J et al (2011) Comparing the efficacy and tolerability of a new daily oral vitamin B12 formulation and intermittent intramuscular vitamin B12 in normalizing low cobalamin levels: a randomized, open-label, parallel-group study

Many people take B12 shots because they think it would give them more energy

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