Possible side effects of using Acetyl L-Carnitine include nausea, upset stomach, and diarrhea

: Water, Glycerin, Dipropylene Glycol, Propanediol, Hippophae Rhamnoides Water, Caprylic/Capric Triglyceride, PPG-13-Decyltetradeceth-24, Hydroxyacetophenone, Caprylyl Glycol, Carbomer, Tromethamine, Hydrogenated Lecithin, Glutathione(600 ppm), Cetearyl Alcohol, 1,2-Hexanediol, Disodium EDTA, Stearic Acid, Dipotassium Glycyrrhizate, Terminalia Ferdinandiana Fruit Extract, Butylene Glycol, Lecithin, Pentylene Glycol, Acetyl Glutamine, Sodium Hyaluronate, Polyglyceryl-10 Stearate, Panthenol, Folic Acid, Bacillus/Soybean Ferment Extract, Oligopeptide-1, Hexapeptide-11, Oligopeptide-2, Oligopeptide-3, Sodium Ascorbyl Phosphate, Hydrolyzed Pea Protein, Madecassoside, Phytosterols, Squalane, Olea Europaea (Olive) Fruit Oil, Tocopherol, Niacinamide, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Hydroxypropyltrimonium Hyaluronate, Hydrolyzed Sodium Hyaluronate, Potassium Hyaluronate, Ceramide NP, Butyrospermum Parkii (Shea) Butter, Ethylhexylglycerin, Biotin, Sodium Hyaluronate Crosspolymer, Pyridoxine, Cyanocobalamin, Riboflavin, Thiamine HCl, Retinol, Bioflavonoids, Sodium Acetylated Hyaluronate, Menadione, Acetyl Hexapeptide-8, Copper Tripeptide-1, Palmitoyl Pentapeptide-4, Linoleic Acid, Beta-Carotene, Fragrance

Greene, C., Hanley, N
10.1089/ars.2012.4639 Antioxid
It modulates neurotransmitter levels such as gamma-aminobutyric acid (GABA) and serotonin, which are critical in inducing and maintaining sleep over an extended period