Water/Aqua/Eau, Tetrahexyldecyl Ascorbate (vitamin C/antioxidant), Dimethicone (silicone/emollient), Glycerin (humectant), C912 Alkane (solvent), Ascorbyl Glucoside (vitamin C/antioxidant), Silica (texture enhancer), Pyrus Malus (Apple) Fruit Extract (plant extracts/antioxidant), Hydrogenated Lecithin (emollient), Polyglyceryl6 Polyricinoleate (emulsifier/suspending/dispersing agent), Acrylates/C1030 Alkyl Acrylate Crosspolymer (texture enhancer), Xanthan Gum (texture enhancer), Glutathione (antioxidant), Ergothioneine (antioxidant), Oryza Sativa (Rice) Bran Extract (plant extracts/antioxidant), Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer (suspending/dispersing agent), Cetyl Alcohol (emollient), Caprylyl Glycol (humectant), Lysine Carboxymethyl Cysteinate (antioxidant), CocoCaprylate/Caprate (emollient), Tocopherol (vitamin E/antioxidant), Sodium Citrate (pH adjuster), Sodium Phytate (chelating agent), Hexylene Glycol (humectant), Ethylhexylglycerin (humectant), Helianthus Annuus (Sunflower) Extract (plant extracts/antioxidant), Urea (humectant), Mannitol (humectant), Caprylic/Capric Triglyceride (emollient), Sodium PCA (humectant), Rosmarinus Officinalis (Rosemary) Leaf Extract (plant extracts/antioxidant), Polysorbate 60 (emulsifier), Sorbitan Isostearate (emulsifier), Trehalose (humectant), Ascorbic Acid (vitamin C/antioxidant), Glucose (humectant), Vanilla Planifolia Fruit Extract (plant extracts/antioxidant), Polyquaternium51 (filmforming agent), Triacetin (solvent), Sodium Hyaluronate (humectant), Phenoxyethanol (preservative)

Vitamin shots are often available as walk-ins call ahead to confirm availability
The body also makes it from the amino acids cysteine, glutamate, and glycine
But long-term compliance may be affected by dietary habits, chewing function, or socioeconomic factors in the elderly
326,327 Importantly, zinc may inhibit neuronal NMDA glutamate receptors, which are dysregulated in those with depression, and raise BDNF levels, which can promote neuroplasticity