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
Amino AcidVeganNon-GMOGMP Quality Assured
Suggested Use
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).
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.
Supplement Facts
Serving Size
2 Veg Capsules
Servings Per Container
30
L-Tryptophan
1,000 mg (1 g) — Daily Value not established
Warnings & Storage
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.
FAQs
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.