• Dietary Supplement
• Egg Free
• Gluten Free
• Free of Nuts
• Dairy Free

L-Tryptophan is the essential amino acid that acts as a precursor to 5-HTP, serotonin, melatonin, and niacin. Tryptophan assists with normal sleep patterns, mood, and appetite. Use with care when combining with SSRI’s, or other substances that increase serotonin levels.

Metabolic Maintenance L-Tryptophan (500 mg, 60 capsules) is a premium free-form amino acid supplement that functions as a precursor to melatonin and serotonin to promote healthy mood, appetite, and sleep. It is a filler-free, vegan-friendly recipe that is frequently used to encourage relaxation.

L-Tryptophan Neurotransmitter Assistance: Maintaining Metabolism 500 mg of the important amino acid tryptophan promotes appropriate sleep patterns, a healthy attitude, and serotonin precursor activity.
Serotonin and Melatonin Pathways: As a precursor to 5-HTP, serotonin, and melatonin, free form essential amino acids support neurotransmitters.
Free Form Amino Acid Formula: In vegetarian capsules without fillers, free form tryptophan promotes better absorption and the use of essential supplements.
Highest Purity Standards: There are no gluten, dairy, soy, corn, nuts, eggs, fish, shellfish, or sesame in this supplement.
Solutions Supported by Science: For over 45 years, Allergy Research Group and its family of brands—Metabolic Maintenance, MethylPro, Nutricology, and Optimox—have provided reliable supplements.

One to two (1-2) capsules daily, or as directed by a healthcare professional. Best taken between meals or at bedtime.

• Sleep Support: Helps produce melatonin, which improves the onset, length, and quality of sleep.
• Mood Enhancement: Promotes a happy mood and less stress by assisting in the maintenance of normal serotonin levels.
• Appetite regulation can assist both good weight management and satiety, or the sense of fullness.
• Support for Neurotransmitters: Acts as a precursor to melatonin, niacin, serotonin, and 5-HTP.
• Free-form amino acids without needless binders, fillers, or preservatives are known as "clean formulations."

Vegetarian cellulose capsule.