As we age, stomach acid production can decline (atrophic gastritis), which makes it harder to extract B12 from food or pills
But lets dig into a bit more research here
Before insulin stimulation, insulin receptors predominantly localize to the plasma membrane
The amount of alcohol consumed (8528.73 g/d vs

Water, Ethylhexyl Methoxycinnamate, Butylene Glycol, Ethylhexyl Salicylate, Octocrylene, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Butyl Methoxydibenzoylmethane, Dipropylene Glycol, Niacinamide, Squalane, C14-22 Alcohols, 1,2-Hexanediol, Polyglyceryl-2 Stearate, Propanediol, Hydroxyacetophenone, Glyceryl Stearate, Stearyl Alcohol, C12-20 Alkyl Glucoside, Tromethamine, Centella Asiatica Extract, Carbomer, Melaleuca Alternifolia Extract, Hippophae Rhamnoides Fruit Extract, Vitis Vinifera Fruit Extract, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Uncaria Sinensis Extract, Glycerin, Adenosine, Disodium EDTA, Oryza Sativa Bran Extract, Hydrogenated Phosphatidylcholine, Caprylic/Capric Triglyceride, Sodium Hyaluronate, Glucose, Hydrolyzed Collagen, Sucrose Stearate, Glutathione, Cyclodextrin, Cetearyl Alcohol, Caprylyl Glycol, Beta-Glucan, Caprylhydroxamic Acid, Ethylhexylglycerin, Asiatic Acid, Asiaticoside, Madecassic Acid, Madecassoside, Tropolone, Hyaluronic Acid, Potassium Hyaluronate *Due to changes in production, the manufacturer may, in rare cases, make short-term changes to the ingredients used

Refrigerate at 28C immediately