Nutra BioGenesis Methyl Factors is an effective supplement to increase vitamin B levels when you are not getting enough of B vitamins through your diet. Deficiencies in vitamin B6, B12 and folic acid can lead to high homocysteine level. Homocysteine is a non-protein amino acid that may be toxic in large quantities. Supports EnergyRecommended usage: As a dietary supplement‚ take one serving (1 ml) one time per day or as directed by your healthcare professional.Nutra BioGenesis Methyl Factors Facts:15 Drops contain: Vitamin B-6 (from pyridoxal-5'-phosphate monohydrate) 10 mg Folate (from folic acid, (6S)-5-methyltetrahydrofolate, glucosamine salt) 400 mcg Vitamin B-12 (from methylcobalamin) 2,500 mcg Other Ingredients: Purified water, vegetable glycerin, xylitol, natural cherry flavor with other natural flavors, xanthan gum, stevia leaf extract, citric acid, potassium sorbate.