DL-Serine for medical field:Amino acid infusion and nutritional supplements: L-Serine is an important component of a variety of amino acid infusions and nutritional supplements, such as amino acid mixtures used in general nutritional therapy and amino acid mixtures in the treatment of patients with liver damage. Synthetic drug intermediates: L-serine is also a synthetic intermediate for a variety of drugs, such as L-dopa.L-amino acids,L-amino acids from plants,Plant extracts.