• Double Strength
• Supports Relaxation
• Encourages Positive Mood
• Promotes Restful Sleep
• Non-GMO
• A Dietary Supplement
• Vegetarian/Vegan
• GMP Quality Assured

L-Tryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet. L-Tryptophan is critical for the production of serotonin and melatonin, which help to support a positive mood, healthy sleep patterns, and proper immune system function. Every lot of NOW L-Tryptophan is tested to be free of Peak E and microbial contamination.

NOW Double Strength L-Tryptophan has twice the L-Tryptophan (1000 mg per tablet) as in our regular strength product (500 mg per capsule).

For California Consumers: WARNING: This product can expose you to Lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information visit: http://www.P65Warnings.ca.gov/food