• L-tryptophan supports relaxation
• L-Tryptophan promotes restful sleep
• L-Tryptophan encourages positive mood
• L-tryptophan supports healthy nervous system
• All Best Naturals products are manufactured in accordance with Good Manufacturing Practices (GMP), among the highest standards in the world — Proudly Made in USA — Purity & Potency Guaranteed

L-Tryptophan is an essential amino acid. It is critical for the production of serotonin an melatonin, which help to support a positive mood, healthy sleep patterns and proper immune function. Best Naturals L-Tryptophan is extremely pure and is regularly tested to ensure the highest standards of quality.