Same-day dispatch before 1pm · Free UK delivery over £100
NOW Foods L-Tryptophan, 500mg
NOW Foods L-Tryptophan, 500mg provides the essential amino acid L-tryptophan in vegetarian capsules. Available in 2 sizes, it gives you a flexible, lower-dose way to add tryptophan to your routine, backed by NOW’s in-house quality testing.
Description
NOW Foods L-Tryptophan 500mg – Essential Amino Acid Veg Capsules
NOW Foods L-Tryptophan 500mg offers the essential amino acid L-tryptophan in convenient vegetarian capsules. Tryptophan occurs naturally in foods such as turkey, dairy, seeds and oats, and the body uses it to produce serotonin and melatonin. The 500mg dose is easy to adjust, whether you take one capsule or more as directed. It is a popular amino acid for evening supplement routines.
Key Benefits
- Essential amino acid – tryptophan must come from the diet because the body cannot make it.
- Flexible 500 mg dose – a lower-strength capsule that is easy to tailor to the label directions.
- Serotonin building block – the body converts tryptophan into serotonin and then melatonin.
- Vegetarian capsules – plant-based vcaps rather than gelatin.
- Two bottle sizes – choose a smaller bottle to try or a larger one for value.
Who Is It For?
A sensible option for adults who want to add tryptophan to their routine at a moderate dose, including gym-goers, shift workers and anyone who prefers an evening supplement ritual. The vegetarian capsules suit most diets.
Flavours & Sizes
Available in 2 sizes: 60 vcaps and 120 vcaps. The larger bottle offers better value per capsule for regular users.
FAQs
Should I take tryptophan with food?
It is usually taken between meals or with a light carbohydrate snack, as protein-rich meals contain other amino acids that compete for absorption.
Is it safe with antidepressants?
Tryptophan may interact with some medicines, including antidepressants. Speak to your GP or pharmacist before use if you take any medication.
Why Shop With Lotty8 Supps?
- Genuine, factory-sealed products – sourced through established UK sports-nutrition wholesale distribution. Never repackaged, never grey-market.
- Fast dispatch – orders placed before 1pm on a working day are dispatched the same day with Royal Mail Tracked 48.
- Low-cost UK delivery – £3.99 per order, free on orders over £100. See our Delivery & Returns page.
- Hassle-free returns – full details on our Delivery & Returns page.
- Top brands in one place – Applied Nutrition, BioTechUSA, SciTec, NOW Foods, Doctor’s Best and many more.
- Real people, real help – questions about a product or your order? Contact the Lotty8 team.
Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. Do not exceed the recommended daily intake. Keep out of reach of young children. Formulations and packaging can change – always read the label on the product you receive before use.
Take one capsule, or the serving on the label, with water, typically in the evening and away from high-protein meals. Not recommended during pregnancy or breastfeeding. Consult a healthcare professional before use if you take any medication.
Always follow the directions on the product label. Do not exceed the recommended daily intake.
- Brand: NOW Foods
- Product: NOW Foods L-Tryptophan, 500mg
- Sizes available: 60 vcaps, 120 vcaps
- Country of origin: China
Country of origin: China
Best before: shown when you choose an option.
Additional information
| Weight | N/A |
|---|---|
| Size | 120 vcaps, 60 vcaps |
| Country of Origin | China |
Frequently asked questions
Are your products genuine?
Yes. Every product comes through established UK wholesale distribution and is sold factory-sealed – never repackaged and never grey-market.
How much is delivery and how quickly will it arrive?
UK delivery is £4.99 per order, and free on orders over £100. Orders placed before 1pm, Monday to Friday, are dispatched the same working day with Royal Mail Tracked 48, which aims to deliver within 2–3 working days. You will get an email with your tracking number as soon as it is on its way. Full details are on our Delivery & Returns page.
Can I return it?
Yes. You have 30 days from delivery to return sealed, unopened items. For health and hygiene reasons supplements and food cannot be returned once the seal is broken, unless they are faulty. If something arrives damaged or is not what you ordered, contact us and we will put it right. See Delivery & Returns.
How can I pay?
Card, Apple Pay and Google Pay. Payments are processed securely by our payment providers, and we never see or store your full card details.
Where can I find the ingredients, nutrition and allergy information?
In the tabs above (Nutrition, Ingredients and How to Use) where they are available for this product. Manufacturers sometimes update formulas and packaging, so always read the label on the pack you receive, especially if you have allergies.
Is it suitable for me?
Food supplements are not a substitute for a varied, balanced diet and healthy lifestyle, and should not be taken above the recommended daily amount. Keep out of the reach of children. If you are pregnant, breastfeeding, taking medication or have a medical condition, speak to your doctor before use.
Who can I ask about this product?
Our UK team is here Mon – Fri, 9:30am – 4:30pm. Call +44 7955 204 290, email info@lotty8supps.com or use our contact page.












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