Douglas Laboratories L-Tryptophan | Supports Melatonin Production, and Restful Sleep | 60 Vegetarian Capsules
Stock Expiry Date*: 04-02-2027
100% Authentic — Sourced directly from manufacturers or their authorized dealers!
- Supports Neurotransmitter Health: Tryptophan crosses the blood-brain barrier and is converted to L-5-Hydroxytryptophan (5-HTP), which in turn is converted into serotonin. Serotonin is an important neurotransmitter necessary for the healthy regulation of melatonin production.*
- Healthy Positive Outlook & Sleep: Supports a positive outlook and restful sleep.*
- Sleep & Relaxation: Our sleep & relaxation formulas are developed to support the management of cortisol, hormones, neurotransmitters and relaxation to optimize health.*
- Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
- For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential for healthy living, today and in the future.*
| Ingredients | Each serving size (2 vegetarian capsules) contains: Vitamin B6 (as pyridoxal-5-phosphate) 6.7 mg, L-Tryptophan (as TryptoPure) 1000 mg. Other ingredients: Hydroxypropyl methylcellulose (capsule). |
| Brand | Douglas Laboratories |
| Flavor | Unflavored |
| Unit Count | 60.00 Count |
| Item Form | Capsule |
| Item Weight | 0.15 Pounds |
| Product Benefits | Sleep Support |
| Number Of Items | 1 |
| Dosage Form | Capsule |
| Primary Supplement Type | L-Tryptophan |
| Color | No Color |
| Manufacturer | Douglas Laboratories |
| Product Type | Sleep Supplements |
| Upc | 310539034149 |
| Model Name | See packaging |
| Brand Name | Douglas Laboratories |
| Age Range Description | Adult |
| Container Type | Bottle |
| Manufacturer Part Number | 202677-60X |
| Total Servings Per Container | 60 |
| Material Features | Vegetarian |
| Item Dimensions | 3.8 x 1.9 x 1.2 inches |
-
5% off when you buy 4 or more.
-
Get 5% off your next purchase.
-
Orders are processed and shipped from Brooklyn, USA.
-
Free delivery on qualifying orders.
3-6 days (Domestic)
30-Day Return Guarantee
Confidence-backed purchases with 30-day return support.
SKU |
BRSWIZQBB4FRCADU |
Category |
Vitamins, Minerals & Supplements , Sleep Supplements |
Barcode |
310539034149 |
Tags |
Important information
Safety Information
Not to be taken by pregnant or lactating women. If you have any health condition or are taking any medication, particularly psychiatric and antidepressant medication, consult your health professional before use.
Indications
Douglas Laboratories - L-Tryptophan
Ingredients
Each serving size (2 vegetarian capsules) contains: Vitamin B6 (as pyridoxal-5-phosphate) 6.7 mg, L-Tryptophan (as TryptoPure) 1000 mg. Other ingredients: Hydroxypropyl methylcellulose (capsule).
Directions
As a dietary supplement, adults take 2 capsules, 1-3 times daily, between meals or as directed by your health professional.
Legal Disclaimer
*These statements have not been evaluated by the Food & Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease. </br></br> Please contact your healthcare professional immediately if you experience any unwanted side effects. The information contained herein is for informational purposes only and does not establish a doctor-patient relationship. Please be sure to consult your physician before taking this or any other product.
Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
Product Dimensions
3.8 x 1.9 x 1.2 inches; 2.4 ounces
Shipping & Delivery
At Nutricity, we aim to deliver your order as quickly and safely as possible.
Domestic Shipping :
Orders are typically delivered within 3–6 business days.
International Shipping:
Estimated delivery time is 12–26 business days, depending on the destination and customs processing.
You will receive a tracking number once your order has been dispatched. Delivery times may vary during holidays or due to unforeseen delays.
Recently tracked orders
| Order Number | Carrier | Final Mile Tracking Code | Last Update | Track |
|---|---|---|---|---|
| NC23439 | Trackyourparcel | 3SABCM108234023 | 2026-09-04 | Track |
| NC17885 | Gls Group | 984229993475 | 2026-08-07 | Track |
| NC17490 | Gls Group | 984228968054 | 2026-08-07 | Track |
| NC17440 | Trackyourparcel | 3SABCM108132637 | 2026-09-17 | Track |
| NC17427 | Trackyourparcel | 3SABCM108134688 | 2026-08-07 | Track |
| NC17200 | Dpd | 05167987799853 | 2026-08-07 | Track |
| NC13896 | Trackyourparcel | 3SABCM108043080 | 2026-07-21 | Track |
| NC06279 | Gls Group | 984225559057 | 2026-07-21 | Track |
Disclaimer
Dietary supplements are not medicines. Products sold on this website are not intended to diagnose, treat, cure, or prevent any disease. If you have a medical condition then always consult a qualified healthcare professional before use. Individual results may vary. By placing an order, you agree to comply with your country’s import regulations. We cover applicable duties and taxes where stated.
*Expiry Date Information:
Please note that the expiry date may vary from batch to batch. However, we guarantee that all products shipped to our customers have a valid shelf life and will not be expired at the time of delivery.









