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L-Tryptophan 500 mg

Jarrow Formulas
4.4
★ ★ ★ ★ ★
(1483 ratings)
Tryptophan 500 mg
Product Image
Score96

A reliable, vegetarian-friendly tryptophan supplement for consistent daily mood and sleep support.

How scoring works
Quantity:60 Veggie Cap(s) • (60 servings)
Goals:
Sleep Support
Mood Support
Stress Relief

Score 96

A reliable, vegetarian-friendly tryptophan supplement for consistent daily mood and sleep support.

How scoring works
$12.70($0.21 per serving)
Vitacost
$ 19.12
Daily Vita
$ 18.99
Amazon
$ 19.12
Pure Formulas
$ 19.12
Daily Vita
$ 12.70
iHerb
$ 14.96
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Analysis

L-tryptophan is an essential precursor for serotonin and melatonin, helping to regulate your mood and your body's internal clock for rest. This Jarrow Formulas product uses a clean vegetable capsule that ensures good absorption of the single active ingredient.

This standard 500 mg dose matches clinical recommendations for effective daily maintenance and emotional resilience. It is an ideal, straightforward choice for individuals seeking to support their natural relaxation rhythms without extra fillers.

Pros

  • High manufacturing standards
  • Pure vegetarian capsules
  • Effective maintenance dose
  • Highly bioavailable

Cons

  • More expensive than tablets
  • Requires consistent daily intake
  • Only 60 capsules per bottle

Warnings

  • May lead to daytime drowsiness
  • Avoid if taking SSRI medications
  • Store away from heat and light

Nutrient quality

95 Highest impact

Standard free-form L-tryptophan provides reliable biological activity for serotonin-related goals. The 500 mg dose aligns with established clinical protocols for daily metabolic support.

Ingredient transparency

100 Highest impact

Labeling clearly identifies the active dosage and provides specific naming for all components. Full disclosure of both active and non-active ingredients ensures safe and informed usage for the consumer.

Customer satisfaction

95 Highest impact

Strong ratings across a large review volume reflect consistent product reliability and efficacy. Feedback confirms that the preparation effectively supports emotional balance and restorative sleep.

Value for money

94 Highest impact

Competitive pricing for a high-purity maintenance supplement provides strong overall value. Consistent manufacturing quality and effective dosing ensure a favorable economic profile for the user.

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Goals

Sleep Support
Impact
Highest effect
A Goal FitA+ Strength of SupportB- CoverageA+ Formula Quality

L-tryptophan is the primary ingredient, serving as an essential precursor for the body's natural production of melatonin and serotonin. This support appears well aligned with regulating the biological rhythms of sleep.

A standard 500 mg dose is included, which matches established clinical standards for effective results. The clean vegetable capsule format supports good bioavailability for the single-active formulation.

View goal →
Mood Support
Impact
Highest effect
A+ Goal FitA Strength of SupportC CoverageA+ Formula Quality

L-tryptophan serves as a direct precursor for serotonin synthesis, which is essential for emotional stability and mood balance. This meaningfully dosed amino acid supports the body's natural production of neurotransmitters that regulate happiness and relaxation.

Consistent use may contribute to better emotional equilibrium and improved sleep quality, which is vital for overall mood maintenance. The vegetable capsule format provides a clean and reliable delivery system for focused support.

View goal →
Stress Relief
Impact
Highest effect
A- Goal FitA+ Strength of SupportC CoverageA+ Formula Quality

L-Tryptophan is provided as a standalone amino acid to support the natural synthesis of serotonin for mood balance and relaxation. Serotonin is a vital neurotransmitter that assists in modulating the body's emotional response to daily environmental stress.

Providing 500mg of Tryptophan ensures a therapeutic dose that aligns with clinical standards for supporting neurological health. This clean and focused formulation is ideal for individuals seeking a specific precursor-based approach to emotional calm.

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Ingredients

IngredientAmount per serving
L-Tryptophan
500 mg
Gluten Free Adults 18–50 Vegan Dairy Free Vegetarian
Report overview
Tryptophan · 500 mg OverallScore91
A- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value
This product offers a clean, standalone 500mg dose of L-Tryptophan in a vegetable capsule for optimal absorption. It is a reliable and straightforward choice for supporting neurotransmitter balance.
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