US$ 26.64
b12 injections king of prussia MIC B-12 in 250 mL and 500 mL vials Provides 1 Boost energy and support metabolism
Description
Benefits of Vitamin D Injections Rapid Absorption Bypasses the digestive system for immediate effect
Neurochemical Research 36 (6): 10121016

Different concentration

Im also taking Berberine so I think both work amazing

Other causes: Rarely, B12 deficiency can result from congenital disorders, bacterial overgrowth, or tapeworm infestations