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Injectable hair protocol: Dose: 1-2mg daily Frequency: Daily or 5 days weekly Duration: 16-24 weeks minimum (longer than anti-aging protocols) Cycle: 8 weeks on, 4 weeks off, repeat Topical scalp protocol: Concentration: 0.5% solution Application: 1-2ml to thinning areas twice daily Duration: 6+ months for meaningful assessment Technique: Apply to clean, dry scalp

B12 primarily supports nerve health, brain function, and energy production

Switch between oral and injectable b12 based on preference and response

Always recalculate using: concentration = vial mg BAC water mL, then draw volume = dose mg concentration