*International journal of molecular sciences*, 19(7), 1987
However, looking at her in recent times, the picture is completely different now

Full list of ingredients: WWater, Centella Asiatica Leaf Water, Glycerin, Cetyl Ethylhexanoate, Butylene Glycol, Polyglyceryl-3 Methylglucose Distearate, Niacinamide, Beeswax, 1,2-Hexanediol, Silica, Palmitic Acid, Hydroxyacetophenone, Propanediol, Glyceryl Stearate, Stearic Acid, Butyrospermum Parkii Butter, Macadamia Integrifolia Seed Oil, Sodium Polyacryloyldimethyl Taurate, Hydrogenated Polydecene, Glutathione, Arginine, Betaine, Carbomer, Trehalose, Adenosine, Ethylhexylglycerin, Disodium EDTA, Dipotassium Glycyrrhizate, Dipropylene Glycol, Trideceth-10, Sodium Hyaluronate, Arachidic Acid, Myristic Acid, Squalane, Beta-Glucan, Asiaticoside, Madecassic Acid, Asiatic Acid, Caprylic/Capric Triglyceride, Citric Acid, Hippophae Rhamnoides Fruit Extract, Melaleuca Alternifolia Leaf Extract, Sodium Citrate, Hydrolyzed Collagen, Hydrogenated Lecithin, Artemisia Annua Extract, Nelumbium Speciosum Flower Extract, Oryza Sativa Extract, Saccharomyces Ferment, Solanum Melongena Fruit Extract, Cholesterol, Xanthan Gum

Your body doesn't make B12 on its own, you get it from animal foods (meat, fish, eggs, dairy) or from supplementation
Several thousands of neurons are produced each day in the hippocampus of adult rodents, yet only a fraction of them finally survive (Kempermann et al., 2003)