US$ 24.51
b12 injections absorb into plastic Methylcobalamin 10,000mcg injectable, 10mL (lyophilized) B12 Injection Dose for Adults:
Description
Here is the honest medical breakdown

Its studied as a selective NNMT inhibitor in laboratory settings

B12 is necessary for the body to produce red blood cells, develop neurons, and DNA synthesis

Bright yellow urine from excess riboflavin (B2) is also common and completely harmless
