Healthvit L-Serine 500MG For Strengthen Immune System | 60 CapsulesL-Serine is a non-essential amino acid important to overall physical and mental health. It is needed for proper functioning of the brain and central nervous system. L-serine helps build the phospholipids required to produce cells in the body.It is also involved in muscle formation, RNA and DNA function, Fat and fatty acid metabolism and the maintenance of a healthy immune system.• Strengthen Immune System.• Stimulate Muscle Growth.• Improve Fatty Acid metabolism.