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This gives your doctor the best view but is slower to heal
Mood-related symptoms of B12 deficiency include persistent irritability, low mood or emotional flatness that doesn't respond to typical coping strategies, restlessness, difficulty concentrating, and a general sense of being "off" that's hard to articulate
The short half-life under 30 minutes means the peptide clears quickly, but its effects on gene expression and cellular signaling persist beyond this window
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