If the label says it contains B12 but the solution shows no color, either the B12 concentration is extremely low (possible but unusual), the B12 has degraded (possible if exposed to light), or there was a labeling error (possible at any pharmacy)
doi:10.1016/j.ymgme.2009.04.005
J., Ghibaudi, L., Compton, D., Fawzi, A
To avoid this, its essential to rotate injection sites regularly, such as alternating between thighs or using different areas within the same muscle
The phosphocholine head group in phospholipids of normal healthy cell membranes is not accessible but, when cells are damaged and die, enhanced availability of lysophosphatidylcholine and disruption of the lipid bilayer expose phosphocholine residues to which CRP avidly binds ( In acute respiratory distress syndrome (ARDS), there is extensive overproduction of free radicals and reduced extracellular and intracellular GSH leading to oxidative cell damage (108)