Source Naturals, L Tryptophan, 500mg Serene Science Label, 60 ct Black Cohosh Comfrey Root

Comfrey Root

Common Names: Great Mullein

which also reduces the human perception of sweet taste

The essential amino acid L-tryptophan helps support relaxation

Source Naturals, L Tryptophan, 500mg Serene Science Label, 60 ct Black Cohosh Comfrey RootThe essential amino acid L tryptophan helps support relaxation, restful sleep, and positive mood. It plays a part in the synthesis of hormones involved with mood and stress response and sleep wake peroids. L Tryptophan also supports immune functions because it is the body's predecessor to the kynurenines that regulate immunity. If needed, L tryptophan converts to niacin in the body, which supports circulation, a healthy nervous system, the metabolism