Water(Aqua), C13-15 Alkane, **Niacinamide, Butylene Glycol, Caprylic/Capric Triglyceride, Tranexamic Acid, Glycerin, **Arbutin, 1,2-Hexanediol, **Glutathione, Borago Officinalis Seed Oil, Glycine Soja (Soybean) Seed Extract, **Alpha-Arbutin, **Acetyl Glucosamine, Panthenol, Xanthan Gum, Potassium Cetyl Phosphate, Allantoin, Ethylhexylglycerin, Melia Azadirachta Flower Extract, Disodium EDTA, Ocimum Sanctum Leaf Extract, Polyglutamic Acid, Melia Azadirachta Leaf Extract, Curcuma Longa (Turmeric) Root Extract, Corallina Officinalis Extract, Squalane, Sodium Hyaluronate, **Kojic Acid, Ascorbic Acid, Centella Asiatica Extract, Tocopherol, Citrus Limon (Lemon) Fruit Extract, Hydroxypropyltrimonium Hyaluronate, Hydrolyzed Hyaluronic Acid, Sodium Acetylated Hyaluronate,Hyaluronic Acid, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Polyglyceryl-10 Laurate, Potassium Hyaluronate, Phosphatidylcholine, Tocopheryl AcetateWater(Aqua), C13-15 Alkane, **Niacinamide, Butylene Glycol, Caprylic/Capric Triglyceride, Tranexamic Acid, Glycerin, **Arbutin, 1,2-Hexanediol, **Glutathione, Borago Officinalis Seed Oil, Glycine Soja (Soybean) Seed Extract, **Alpha-Arbutin, **Acetyl Glucosamine, Panthenol, Xanthan Gum, Potassium Cetyl Phosphate, Allantoin, Ethylhexylglycerin, Melia Azadirachta Flower Extract, Disodium EDTA, Ocimum Sanctum Leaf Extract, Polyglutamic Acid, Melia Azadirachta Leaf Extract, Curcuma Longa (Turmeric) Root Extract, Corallina Officinalis Extract, Squalane, Sodium Hyaluronate, **Kojic Acid, Ascorbic Acid, Centella Asiatica Extract, Tocopherol, Citrus Limon (Lemon) Fruit Extract, Hydroxypropyltrimonium Hyaluronate, Hydrolyzed Hyaluronic Acid, Sodium Acetylated Hyaluronate,Hyaluronic Acid, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Polyglyceryl-10 Laurate, Potassium Hyaluronate, Phosphatidylcholine, Tocopheryl Acetate

J Neural Transm 104:661677 Saharan S, Mandal PK (2014) The emerging role of glutathione in Alzheimer's disease
Another big issue is Hypothyroidism
In rarer cases, vitamin B12 can cause more serious side effects such as an irregular heartbeat or heart palpitations, hives, and anaphylaxis