Once frozen, the peptide is ruined
However, no dose should be the starting dose
5 When ingested, the body must break it down into its active form before it can be used, which may be difficult for people with SNPs (genetic mutations) on B12 metabolic pathways
If you follow a vegan diet, B12 is not found naturally in fruit, vegetables or grains, so fortified foods or a supplement matter more, and seaweed, spirulina and similar products are not reliable sources
20mg vial reconstitution For 20mg vials, adding 2mL of bacteriostatic water creates a 10mg/mL concentration
Cell Metabolism, 22(1), 31-53