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Doctor’s Best L-Theanine with Suntheanine, 150mg – 90 vcaps
Doctor’s Best L-Theanine with Suntheanine, 150mg – 90 vcaps provides 150mg of L-theanine per vegetable capsule using Suntheanine, a well-known branded form from Japan. With 90 capsules per bottle, it is a great-value, caffeine-free addition to your routine.
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Description
Doctor’s Best L-Theanine 150mg – Suntheanine Capsules
Doctor’s Best L-Theanine with Suntheanine gives you 150mg of L-theanine in each vegetable capsule. L-theanine is an amino acid found naturally in tea leaves, and Suntheanine is a branded form produced by the Japanese company Taiyo. Doctor’s Best has built a reputation for using recognised ingredients like this in simple, transparent formulas, and the 90-capsule bottle makes it an excellent value option for regular use.
Key Benefits of Doctor’s Best L-Theanine
- 150mg per capsule: a clearly labelled amount of L-theanine in every vcap.
- Suntheanine: a branded L-theanine from Japanese ingredient maker Taiyo.
- Tea-derived amino acid: L-theanine occurs naturally in green and black tea.
- Caffeine free: suits any time of day, with or without coffee.
- Big bottle: 90 capsules for a long-lasting supply.
Who Is It For?
This L-theanine capsule suits students, professionals, gamers and gym-goers who want a composed, balanced feel to their day. It is a favourite with coffee drinkers who like to pair caffeine with L-theanine, and with anyone who prefers a single, clearly labelled ingredient.
Why Choose Doctor’s Best?
Founded in California in 1990, Doctor’s Best focuses on branded ingredients and straightforward formulas at accessible prices.
FAQs
When should I take L-theanine?
You can take it at any time. Many people take it with their morning coffee, while others prefer it in the evening.
Is it suitable for vegetarians?
The capsules are vegetable-based. For full dietary and allergen information, check the label on your pack.
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 once or twice daily with water, with or without food, or follow the serving on the label.
Speak to your GP before use if you are pregnant, breastfeeding or taking medication, particularly for blood pressure. Store in a cool, dry place.
Always follow the directions on the product label. Do not exceed the recommended daily intake.
- Brand: Doctor's Best
- Product: L-Theanine with Suntheanine
- SKU: P30621
- Category: Mood Enhancement
- Strength: 150mg
- Pack size: 90 vcaps
- Product format: Vegetarian capsules
- EAN: 0753950001978
- Listed shipping weight: 0.055 kg
- Country of origin: United States
Additional information
| Weight | 0.055 kg |
|---|---|
| Country of Origin | United States |
| Expiry Date | 2028-03-31 |








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