L-Tryptophan, 500mg is a single amino acid supplement from NOW Foods, supplied in vegetarian capsules. It’s for people specifically looking for tryptophan by name rather than a blended amino acid or BCAA formula, sold within a dedicated amino acids category.
Key details
- Brand: NOW Foods
- Format: vegetarian capsules (vcaps)
- Strength: 500 mg L-tryptophan per capsule
- Pack size: 120 capsules (60 servings, 2 capsules each)
- Pack weight: 0.135 kg
- EAN: 733739001672
How to choose
Because the serving size is two capsules rather than one, check the label carefully to take the amount intended per serving rather than assuming a single-capsule dose. This sits within the amino acids and BCAAs range alongside other single amino acid products from NOW Foods and other brands.
Composition
L-Tryptophan (950 mg). Other ingredients: Cellulose
How to use
Serving size: 2.25 tsp. Daily servings: 2-3. SUGGESTED USAGE: As a dietary supplement, take one or two 1/4 level teaspoons 2 to 3 times daily on an empty stomach or as directed by your physician. Best used at bedtime. Servings per container: 57.









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