Source Naturals, L-Tryptophan, 500 mg, 60 Capsules Roxidex or vitamin B9

or vitamin B9

a plant native to Central Asia

This is all accomplished without the dreaded crash afterwards

and performance

Lime Juice Powder)

Source Naturals, L-Tryptophan, 500 mg, 60 Capsules Roxidex or vitamin B9Dietary Supplement Mood, Relaxation, Sleep The essential amino acid L tryptophan helps support relaxation, restful sleep, and positive mood. It plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response and sleep wake cycles. L Tryptophan also supports immune functions because it is the body's precursor to the kynurenines that regulate immunity. If needed, L tryptophan converts to niacin in the body,