NOW Foods L-Tryptophan provides 500 mg of the essential amino acid L-tryptophan per capsule. Tryptophan is a precursor to serotonin and melatonin, supporting relaxation, positive mood, and healthy sleep patterns. Vegan/vegetarian friendly.

• Supports relaxation, mood, and restful sleep
• Free-form L-tryptophan (500 mg per capsule)
• Vegan, Non-GMO, Kosher, Halal
• Every lot tested for Peak E and microbial contaminants

Take 1–2 capsules, 2 to 3 times daily on an empty stomach, with the final dose at bedtime, or as directed by your healthcare professional.

• Common routines: 500–1,000 mg in the evening; optional daytime use for mood support.
• Avoid taking with high-protein meals (may compete for absorption).

Per Veg Capsule:

• L-Tryptophan (Free-Form) — 500 mg

Other ingredients: Hypromellose (cellulose capsule), rice flour, ascorbyl palmitate, stearic acid (vegetable source).

Allergen info: Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut, or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

• For adults only. May cause drowsiness.
• Interactions: Consult your physician if taking medication—especially antidepressants (e.g., SSRIs, MAOIs)—or if you have a medical condition, are pregnant, or nursing.
• Do not use with alcohol or while operating machinery.
• Store sealed in a cool, dry place. Keep out of reach of children.

Q: Can I stack L-Tryptophan with magnesium, glycine, or GABA?
A: Many customers pair tryptophan with evening nutrients like magnesium, glycine, or GABA for sleep support. If you use other mood/sleep supplements or medications, check with your clinician first.

Q: When should I take it?
A: Often taken 30–60 minutes before bed. If using daytime doses for mood, take on an empty stomach away from protein.