

"Very quick delivery. Used 3 times, each order arrived the next day before 12:00. Product quality is exactly as described."
"Reliable & original products, with fast next day delivery. Have been using Welzo for over a year now."
"Welzo is great, lots of support from customer service who are easy to get a hold of and quick delivery."
L -tryptophan (60 капсули) - Метаболитна поддръжка
Въвеждане на L-tryptophan, основната аминокиселина, която играе решаваща роля в производството на 5-HTP, серотонин, мелатонин и ниацин.
Quantity
100% Money back guarantee, no questions asked
Secure Transaction
Въвеждане на L-tryptophan, основната аминокиселина, която играе решаваща роля в производството на 5-HTP, серотонин, мелатонин и ниацин. Нашата първокласно качество L-Tryptophan добавка е проектирана да поддържа здрави модели на сън, да регулира настроението и да насърчава здравословния апетит. Всяка бутилка съдържа 60 капсули, предоставяйки ви удобен и ефективен начин да включите това жизненоважно хранително вещество в ежедневието си. Доверете се на метаболитна поддръжка за всички ваши хранителни нужди и изпитайте предимствата на L-Tryptophan за себе си.
- GTIN
- 838287001492
- Manufacturer
- Metabolic Maintenance
- Best buy
- 6 to 24 months+
United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched next working day).
Free shipping on orders over £50 to the UK.
Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 14 days in the same original and unopened packaging. Subject to T&C's.
Welzo is a UK-based health platform. Orders ship from the UK.
Please consult the product packaging for accurate instructions on how to use the product.
| Nutritional Information | |
| Serving Size: 1 | |
| Servings Per Container: 60 | |
| Amount Per Serving | |
| Vitamin B-6 (As Pyridoxine HCl) | 10 mg |
| L-Tryptophan (TryptoPure) | 500 mg |
| Daily Value not established. | |
The Active Ingredient Is: L-Tryptophan (TryptoPure™)
L-Tryptophan is an essential amino acid that acts as a direct precursor to serotonin and melatonin, supporting normal mood and sleep regulation. This form is supplied as TryptoPure™ for high-purity L-tryptophan, used alongside Vitamin B-6 as a cofactor in metabolic processes.
This formula highlights L-tryptophan as the main active ingredient, with Vitamin B-6 included to support its conversion to serotonin and melatonin.
What Does L-Tryptophan Do?
L-Tryptophan participates in the production of serotonin and melatonin, which are involved in mood regulation and sleep-wake cycles. Scientific research suggests that L-tryptophan can support these pathways in your body, with Vitamin B-6 aiding the conversion process, in line with EFSA and NHS guidance.
Dr. Hartmann from the University of Munich and colleagues note that these mechanisms underpin normal sleep and mood regulation as part of a balanced diet and healthy lifestyle.
*This product is not intended to diagnose, treat, cure, or prevent any disease.
Metabolic Maintenance shows a clear commitment to facility standards and responsible manufacturing, making them a great partner for Welzo. This brand centres on steady quality across its operations, matching our aim to work with suppliers that prioritise reliability and safety.
Metabolic Maintenance employs TryptoPure™-brand L-Tryptophan and follows strict manufacturing practices in line with FDA expectations for dietary supplements and GMP safety standards. Their allergen-free formula and open approach to ingredient testing reflect a disciplined quality philosophy that resonates with our standards. We recognise this brand for its strong reputation in the industry and its history of making focused, clinically relevant amino acid supplements, which supports the trust we place in their products. When evaluating partners, our medical team carefully and thoroughly assesses supplier credibility and quality systems, and this brand consistently fits our criteria our medical team for safety and reliability, complemented by our rigorous testing protocols.
Part of the Welzo System™
Test, supplement, enhance, and move, all in one place.
Frequently Asked Questions
Everything you need to know about this product.






