Source Naturals L-Tryptophan
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Overview
Source Naturals L-Tryptophan is a dietary supplement centered on the essential amino acid L-tryptophan, with a focus on mood, relaxation, and sleep support. The formula provides this amino acid in capsule form and is presented as a highly pure product that is regularly tested for quality.
L-tryptophan is involved in the body’s production of serotonin and melatonin, two compounds associated with mood, stress response, and sleep-wake regulation. It is also described as supporting immune function through its role as a precursor to kynurenines, which help regulate immunity. In addition, the body can convert L-tryptophan into niacin when needed, and niacin contributes to circulation, nervous system health, food metabolism, and hydrochloric acid production for digestion.
Because the product is built around a single amino acid rather than a broad sleep blend, its formulation is straightforward and focused on supporting restful sleep and a positive mood through several related metabolic pathways.
Key Features & Benefits
- Provides L-tryptophan, an essential amino acid.
- Formulated to support relaxation.
- Designed to help maintain restful sleep.
- May support a positive mood.
- Supports the body’s production of serotonin and melatonin.
- May help support immune function through kynurenine pathways.
- Can be converted by the body into niacin when needed.
- Supplied in capsule form for convenient daily use.
- Made without yeast, dairy, egg, gluten, soy, or wheat.
- Contains no preservatives, artificial color, artificial flavor, or artificial fragrances.
Specifications
- Brand: Source Naturals
- Product name: L-Tryptophan
- Supplement type: Dietary supplement
- Active ingredient: L-tryptophan
- Dosage form: Capsule
- Package quantity: 60 count
- Intended use: Mood, relaxation, and sleep support
- Product code: SNS-01984
- UPC: 021078019848
Suggested Use
Take 1 capsule three times daily, between meals, preferably with fruit juice. For sleep support, take an additional 3 capsules before bedtime.
Other Ingredients
Gelatin (capsule), magnesium stearate, silica, microcrystalline cellulose, and dibasic calcium phosphate.
Allergen & Dietary Information
This product contains gelatin. It does not contain yeast, dairy, egg, gluten, soy, or wheat. It is also formulated without preservatives, artificial color, artificial flavor, or artificial fragrances.
Warnings
- Do not use the product if the tamper-evident seal is broken or missing.
- Keep out of reach of children.
- If you are pregnant, may become pregnant, breastfeeding, or taking medications such as SSRIs or MAOIs, consult a health care professional before using this supplement.
Storage
Store in a cool, dry place.
This L-tryptophan supplement is designed to support relaxation, mood, and sleep through an essential amino acid involved in serotonin and melatonin production, with a formula that is tested for purity and free from several common allergens and additives.
Disclaimer
The information provided on this page is intended for general informational purposes only and should not be considered medical advice. Product formulations, ingredients, packaging, and labeling may change over time. Always read the label, warnings, and directions provided with the product before use. If you are pregnant, nursing, taking medication, or have a medical condition, consult a qualified healthcare professional before using any dietary supplement.
Source Naturals L-Tryptophan FACTS AND ALTERNATIVES COMPARISON
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Source Naturals L-Tryptophan
Source Naturals
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8
Life Extension L-Tryptophan
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Life Extension Optimized Tryptophan Plus
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Jarrow Formulas L-Tryptophan Peptide
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|---|---|---|---|---|
| Serving Size | 3 Capsules | 1 Vegetarian Capsule | 3 Vegetarian Capsules | 2 Tablets |
| Price/Serving | $0.63 | $0.28 56% | $0.82 30% | $0.66 5% |
| Servings Per Container | 20 | 90 350% | 30 50% | 30 50% |
| L-Tryptophan | 1.5 g | 500 mg · ** 200% | 1000 mg · ** 50% | 1350 mg 11% |
| Iron | 575 mcg (naturally occurring) | missing substance or information* | missing substance or information* | missing substance or information* |
| Tryptophan | missing substance or information* | missing substance or information* | 285 mg Perluxan Hops Standardized Extract (cones) and Ursole Rosemary Standardized Extract (leaves) | 500 mg (from L-Tryptophan Peptides [PepForm]) |
| Vitamin B3 | missing substance or information* | missing substance or information* | 66 mg• · 413% (as niacinamide) | missing substance or information* |
| Lysine | missing substance or information* | missing substance or information* | 250 mg · ** (from L-Lysine HCl) | missing substance or information* |
*Some information on the Source Naturals L-Tryptophanlabel may be missing, or it may have been written incorrectly. We work hard to keep the information accurate & up to date. Please let us know if you discover any errors.
