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Doctor’s Best L-Tryptophan, 500mg – 90 vcaps
Doctor’s Best L-Tryptophan, 500mg – 90 vcaps supplies the essential amino acid L-tryptophan in vegetable capsules. A simple, single-ingredient supplement that many people add to their evening routine alongside a balanced, protein-rich diet, with 90 capsules in every bottle.
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Description
Doctor’s Best L-Tryptophan 500mg – Essential Amino Acid Capsules
Doctor’s Best L-Tryptophan 500mg is an essential amino acid supplement providing 500mg of L-tryptophan per vegetable capsule, with 90 vcaps per bottle. Tryptophan is one of the nine essential amino acids, so it must come from the diet; it is found in turkey, milk, oats, eggs and seeds. The body uses tryptophan to build proteins and as the starting material for serotonin and melatonin.
Key Benefits
- 500mg per capsule – a clear, single-ingredient dose of L-tryptophan.
- Essential amino acid – one of the amino acids the body cannot make itself.
- Serotonin and melatonin precursor – tryptophan is the raw material for these naturally occurring compounds.
- Vegetable capsules – vcaps rather than gelatin shells.
- 90 capsules – a practical supply for regular use.
Who Is It For?
Suited to adults who like to supplement individual amino acids, people whose diets are low in tryptophan-rich foods, and those who prefer an evening supplement as part of a calm wind-down routine.
Why Choose Doctor’s Best?
Doctor’s Best is a California-based brand with decades of experience making science-based supplements with clearly labelled, straightforward formulas.
FAQs
When should I take L-tryptophan?
Many people take it in the evening, away from protein-heavy meals. Check the label on your pack for the recommended serving and timing.
Is it suitable for vegans?
The capsules are vegetable-based, but check the label on your pack for full suitability information.
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 the serving on the label with water, often in the evening or between meals. Speak to your GP or pharmacist before use if you take any medication, particularly antidepressants or sleep medication. Not recommended during pregnancy or breastfeeding unless advised by a healthcare professional.
Always follow the directions on the product label. Do not exceed the recommended daily intake.
- Brand: Doctor's Best
- Product: L-Tryptophan
- SKU: P7082
- Category: Individual Amino Acids
- Strength: 500mg
- Pack size: 90 vcaps
- Product format: Vegetarian capsules
- EAN: 0753950001268
- Listed shipping weight: 0.095 kg
- Country of origin: United States
Additional information
| Weight | 0.095 kg |
|---|---|
| Country of Origin | United States |
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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