Life Extension L-Tryptophan, 500 mg, 90 Vegetarian Capsules

Life Extension's L-Tryptophan is a single-ingredient supplement formulated to support healthy sleep, mood, and stress response by maintaining tryptophan levels in the body. Each vegetarian capsule provides 500 mg of L-tryptophan, an essential amino acid that serves as a precursor for serotonin, a neurotransmitter linked to these functions.

This product is designed for occasional sleeplessness and is manufactured using rigorous processes to ensure quality and purity. The manufacturer cites peer-reviewed research on tryptophan's role in sleep patterns, mood, stress response, and satiety, though individual results may vary. It comes in a 90-count bottle of vegetarian capsules and is certified gluten-free and non-GMO.