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Particularly concerning, it appears that some studies were either canceled or stopped without conclusions
Ingredients Aqua (Water), Paraffinum Liquidum (Mineral Oil), Cetearyl Alcohol, Petrolatum, Synthetic Wax, Polysorbate 60, Glycerin, Sorbitan Stearate, Dimethicone, Caprylic/Capric Triglyceride, Glutathione, Ascorbyl Tetraisopalmitate, Diacetyl Boldine, PEG-40 Hydrogenated Castor Oil, Sodium Levulinate, PPG-8-Ceteth-20, PPG-4-Ceteth-20, Butylene Glycol, Glyceryl Stearate, PEG-100 Stearate, Palmitic Acid, Stearic Acid, Levulinic Acid, Carbomer, Xanthan Gum, Disodium EDTA, Tocopherol, Triethanolamine, Citric Acid, Sodium Citrate, Sodium Benzoate, Sodium Metabisulfite, Methylparaben, Parfum (Fragrance), Benzyl Alcohol

Some of the roles that are attributed to vitamin B12 include: Forming red blood cells Playing a role in DNA/RNA synthesis Acting as a cofactor for methionine synthase (helping with methylation or the conversion of homocysteine to methionine, which protects cardiovascular health and more) Facilitating metabolic conversion of protein and fats Carrying out neurotransmitter functions and helping with production of hormones Helping convert amino acids and make creatine Producing myelin sheath (the coating of nerves) Helping with synthesis of hemoglobin Playing a role in fetal development during pregnancy How Much Do You Need