L Serine is an essential amino acid that makes up brain proteins and nerve coverings. L Serine supplements may offer many benefits to those deficient in the amino acid due to it’s vital role in the body. Serine aids in the production of immunoglobins, helps produce tryptophan, and is vital in the production of Serotonin. Supplementing with L-Serine may offer a number of benefits including support of cognitive function, mood, emotional stability, sleep, and the immune system. L-Serine is naturally found in many food products such as meat, soy, and dairy. However, if enough L-Serine is not being consumed in the diet supplementing is recommended. Double Wood Supplement’s L-Serine supplement capsules are non-gmo, vegan friendly, and are made / tested right here in the USA.