It is not approved for human or veterinary use, clinical administration, therapeutic applications, or diagnostic procedures of any kind
B12 injections go straight into your muscle and bloodstream, so your body takes up most of the dose, while oral B12 has to pass through your digestive system first, where only a small fraction of a tablet gets absorbed
In essence, nanoencapsulation methods that create a tight, continuous barrier around the active compound (as with the starch-protein gel for curcumin or the pullulanWPI microcapsule for -carotene) provide superior photoprotection by absorbing or scattering incoming UV radiation before it can reach the nutraceutical
No need to carry around or take a bunch of supplements
"Erratum: l-Carnitine Supplementation in Recovery after Exercise
Daily maintenance usually requires 250500 mg