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Brain and Nervous System Health500 mg Per CapsuleFeaturing AjiPure®Dietary SupplementSupports Brain and Nervous System FunctionAmino Acid for Cell ProliferationPharmaceutical Grade Amino AcidScience-Backed Quality Since 1969VegetarianWhile L-serine is classified as a non-essential amino acid it is nonetheless important to a variety of structures and functions within your body. Cell proliferation nervous system functions and brain function all require adequate L-serine. It's considered non-essential only because a healthy body should be able to synthesize it; however many people today find benefit in supplementation. High-purity Swanson AjiPure L-Serine is produced through a fermentation process by the amino experts at Japan's Ajinomoto Amino Science LLC the world leader in pharmaceutical-grade amino acids.