Doctor's Best L-Theanine with Suntheanine offers a premium supplement designed to support relaxation and mental clarity. Each vegetarian capsule contains 150mg of Suntheanine, a patented form of L-Theanine, which is an amino acid primarily found in green tea leaves. This product is crafted to promote a calm and focused state of mind without causing drowsiness, making it ideal for those seeking to enhance their mental performance and reduce stress.

L-Theanine is renowned for its ability to cross the blood-brain barrier, where it influences brain wave activity, promoting a state of relaxed alertness. This makes it a popular choice for individuals looking to improve concentration and focus during work or study sessions. Additionally, it may help in managing everyday stress, contributing to overall well-being.

Doctor's Best ensures the highest quality by using Suntheanine, which is produced through a patented fermentation process that mimics the natural process in green tea leaves. This guarantees a pure and potent form of L-Theanine, free from any artificial additives or preservatives.

The product comes in easy-to-swallow vegetarian capsules, making it suitable for those following a plant-based lifestyle. With 90 capsules per bottle, it offers a convenient and long-lasting supply for daily use. Whether you're looking to enhance your cognitive function or simply seeking a natural way to unwind, Doctor's Best L-Theanine with Suntheanine is a reliable choice to support your mental and emotional health.

L-Theanine (as Suntheanine), L-Theanine (as Suntheanine)

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UK, Europe & 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.

Take 1 capsule daily without food, or as recommended by a nutritionally informed physician. Store in a cool, dry place. Not recommended for individuals who are pregnant or lactating.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.