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If you suspect a real deficiency, Triny will recommend a serum B12 and methylmalonic acid (MMA) test to confirm

Each ingredient on its own is either Category A (B) or essential with no evidence of harm at normal levels (B, B, B) or Category C in very high doses (niacin)

Vitamin B12 The results of vitamin B12 deficiency can be devastating

Vitamin B12 is responsible for: Supporting myelin, the protective covering that surrounds your nerves, so you can think clearly, recall information, and maintain a stable mood

Its stability, low systemic activity, and peptide-based nature make it well-suited for ongoing research into long-term metabolic modulation and regenerative health applications