L-Tryptophan®

Other Combinations

Brand: Pure Encapsulations

CapsuleOther CombinationsOn Market

Functions

Sleep, Mood & Stress

Product label for L-Tryptophan — Click to view full label

Net Contents

90 Capsule(s)

Serving Size

2 Capsule(s)

Servings Per Container

Supplement Form

Capsule

Bar Code (UPC/SKU)

7 66298 02084 6

Product Version

code: TRY19 v2

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

2Active Ingredients

2 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

1% Daily Value Coverage

1 ingredients report a %DV; 1 meet or exceed 100% DV.

2Dietary Attributes

Label states: Non-GMO, Gluten-Free.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen Guide

Free From

Gluten

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Supplement Facts

Serving Size: 2 Capsule(s) · 1–3 per day

Ingredient	Amount Per Serving	% Daily Value
Vitamin B6(Pyridoxal 5-Phosphate)	6.7 mg	394%
TryptoPure L-Tryptophan	1000 mg	—

Not Present

Other Ingredients

CelluloseWater

Target Groups

Adult (18 - 50 Years)Women (not pregnant or lactating)Gluten Free

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Recommendations: As a dietary supplement, take 2 capsules, 1-3 times daily, between meals.

Warnings & Precautions

Precautions re: Pregnant or Nursing or Prescription Medications

Warning: Not to be taken by pregnant or lactating women. If you have any health condition or are taking any medication, particularly psychiatric medication, consult your health professional before use. Do not use concurrently with antidepressants.

Precautions re: Children

Keep out of the reach of children.

Precautions re: All Other

Use only if safety seal is intact.

Precautions re: Allergies

Gluten-free, Non-GMO & Hypoallergenic

Storage

Store in a cool, dry place.

Formulation

Formulation re: Does NOT Contain

Certified Gluten Free by the Gluten-Free Certification Organization, www.gluten.org

Formulation re: Other

Supports serotonin synthesis for emotional wellness and restful sleep

Formulation re: Does NOT Contain

Gluten-free, Non-GMO & Hypoallergenic

FDA Statements

FDA Statement of Identity

Dietary Supplement

FDA Disclaimer Statement

This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Other Label Statements

General Statements: All Other Content

Contents may not fill package in order to accommodate required labeling. Please rely on stated quantity. Scan to learn about our hypoallergenic supplements

Seals/Symbols

GFCO.org (Gluten-Free Certification Organization) Certified Gluten Free by the Gluten-Free Certification Organization, www.gluten.org

Brand IP Statement(s) re: (c), (TM), (SM)

AJIPURE and TRYPTOPURE are registered trademarks of Ajinomoto AminoScience LLC.

Manufacturer & Distributor

Manufacturer

Pure Encapsulations

490 Boston Post Road, Sudbury, MA

1-800-753-2277

Market Reference

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$58.00
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PureFormulas.com4.8(83)
$61.00
L- Tryptophan
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$43.99
Lidtke Technologies L- Tryptophan Chewable 30 Caps
Lidtke Technologies4.6(15)
$15.95

Where to Buy Locally

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

ITL Health
5.0 (37)
Vitamin & Supplements Shop
50 Broadway, London SW1H 0BL
Directions 0118 321 7628
Prodentim
5.0 (1)
Vitamin & Supplements Shop
72 Regent St., London W1B 4EN
Directions 028 6745 7567
Aphro-D
4.9 (82)
Vitamin & Supplements Shop
27 Old Gloucester St, London WC1N 3AF
Directions +1 224-241-7531
Protiv Nutrition
5.0 (1)
Vitamin & Supplements Shop
3rd Floor, 207 Regent St., London W1B 3HH
Directions 07442 915758
Nutriburst
4.6 (30)
Manufacturer
8 Waterloo Pl, London SW1Y 4BN
Directions 020 3943 8201
Arbor Vitamins
5.0 (13)
Vitamin & Supplements Shop
128 City Rd, London EC1V 2NX
Directions
Vitopia
4.9 (57)
Vitamin & Supplements Shop
18 Wimpole St, London W1G 8GD
Directions 020 7164 6368
RightNutri
4.9 (78)
Vitamin & Supplements Shop
26 Queenstown Rd, London SW8 3RX
Directions 0800 098 8888

Research & Studies

Fabrication of Ethyl Cellulose and Hydroxypropyl Cellulose Composite Microcapsules via Solid-Oil-Oil Emulsion for Encapsulation of l-Tryptophan
B Pomon, A Madler, X Jiang… - Food and Bioprocess …, 2025 - Springer
… l-Tryptophan (Trp) is an important amino acid in the human diet: It is responsible for the healthy … We created an encapsulation platform to mask Trp’s unpalatable flavor. High loading …
20251 citations
… coupled to mass spectrometry in quality assessment of dietary supplements—A case study of tryptophan supplements: release assay, targeted and …
KA Stępień, J Giebułtowicz - Pharmaceuticals, 2022 - mdpi.com
… Trp has a positive effect on mood, cognitive functions [30], sleep [31], and a decrease or maintenance of a healthy weight [32]. Response to supplementation is individual and may be …
20229 citations
Fabrication and characterization of whey protein isolate-tryptophan nanoparticles by pH-shifting combined with heat treatment
L Yang, H Dong, J Wang, Y Dadmohammadi… - Food Research …, 2024 - Elsevier
… L-Tryptophan (Trp) is an essential amino acid with numerous health benefits. However, incorporating Trp into food products is limited due to its pronounced bitter taste. Encapsulating …
202416 citations
Development of tryptophan-modified chitosan-based nanorelease system: Universal encapsulation and targeted delivery of hydrophilic and hydrophobic bioactive …
Z Wang, Z Yang, X Wang, L Xing, J Chen… - Food and Bioproducts …, 2025 - Elsevier
This study successfully constructed an amphiphilic universal nanodelivery system (Trp-CS-PC) by modifying chitosan (CS) with hydrophobic L-Trp and dynamically self-assembling it …
20251 citations
Tryptophan Stability and Palatability in the Food Formulation: A Review
S Allahmadadi, A Homayouni-Rad… - Current …, 2025 - benthamdirect.com
… to the specific dietary needs and health considerations of different population groups. It is vital … Supplementing healthy women with up to 5.0 g/d of Ltryptophan has no adverse effects. J. …
2025
A systematic review of the effect of L-tryptophan supplementation on mood and emotional functioning
AM Kikuchi, A Tanabe, Y Iwahori - Journal of dietary supplements, 2021 - Taylor & Francis
… This systematic review includes 11 RCTs that examined the effects of TRP intake on positive and negative mood in healthy adult populations. We have targeted healthy adult men and …
2021109 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2023-06-22. DSLD Label ID: 294000. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.