Some areas of the body have a more easily accessible layer of tissue, where a needle injected under the skin will not hit muscle, bone, or blood vessels
This allows multiple withdrawals across weeks of treatment
Quay TAW, Schroder TH, Jeruszka-Bielak M, Li W, Devlin AM, Barr SI, et al
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The injection delivers methylcobalamin or cyanocobalamin active forms of B-12 directly into muscle tissue, where it is quickly utilized by the body
Single 10 mL vials start at $9.99, with volume discounts on 10-vial packs ($74.99 $7.49 per vial), 25-vial packs ($174.99 $6.99 per vial), and bulk orders starting at $6.49 per vial