L-Theanine 200mg

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from £12.50
from £12.50
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Nature's Best L-Theanine 200mg supplement container on a green leaf background
Nature's Best L-Theanine supplement container on a green leaf background
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Nature's Best L-Theanine supplement container with text about enhanced absorption and performance on a green background.
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Nature's Best L-Theanine 200mg capsules on a green leaf with text about capsules.
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766 image
766 image

L-Theanine 200mg

VE
V
from £12.50
from £12.50

Product ID: 766

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  • PLEASE NOTE: THIS ITEM IS CURRENTLY OUT OF STOCK. ORDER NOW FOR DELIVERY AFTER 12TH OCTOBER 2026.
  • Get the same calming benefits, plus mental performance support with L-Theanine & Lemon Balm
  • Relax and find your Zen: Derived from green tea, our L-Theanine capsules help support relaxation and calm without caffeine chaos or drowsiness.
  • Restore calm: Superior, highly absorbable L-form, providing restorative and calming properties to help you comfortably survive everything from challenging workdays to busy family schedules.
  • A wellbeing wonder: For confident calm no matter what challenges arise, our L-Theanine capsules dissolve quickly, ready when you are.
Size:60 Capsules

Free delivery on United Kingdom orders over £20.

This item is in stock and will be dispatched in 1-2 days.

Experience Nature's Best L-Theanine 200mg, a premium, non-drowsy relaxation supplement with restorative and calming properties, naturally sourced from green tea extract. Discover the power of L-theanine:  L-Theanine - the amino acid that’s found naturally in tea leaves, it’s the secret behind that serene feeling you get from a good cuppa.

Adults aged 18 and over, take 1 capsule daily, always with a meal. Do not take on an empty stomach. Do not exceed recommended daily intake. Consult your healthcare practitioner prior to taking should you have concerns.


Food supplements should not replace a balanced diet and healthy lifestyle.

Typically per tablet
L-Theanine (from Green Tea Extract with up to 5mg epigallocatechin gallate EGCG) 200mg

Green Tea (Camellia sinensis) Leaf Extract, Capsule Shell (Hydroxypropyl Methylcellulose), Bulking Agent (Rice Flour), Anti-caking Agents (Stearic Acid & Silicon Dioxide).

This product is suitable for all adults.
This product is suitable for vegetarians and vegans.
This product is not suitable during pregnancy or breastfeeding.

Do not take if pregnant or breastfeeding. Do not exceed 800mg EGCG daily. Do not take with other
green tea products.

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What it supports

Derived from tea leaves, the amino acid L-Theanine demonstrates efficient intestinal absorption and the ability to traverse the blood-brain barrier, contributing to a sense of serenity.

Relaxation

A sense of calm

Emotional wellbeing

Did you know?

L-theanine was identified as an amino acid by Japanese scientists in 1949. In 1950, complete isolation of L-Theanine from gyokoro tea leaves was achieved.

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L-Theanine is disintegrated in the body in under 30 minutes, which means it can get to work quickly. It is also naturally sourced from green tea extract.

EXPERT NUTRITION TEAM

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            FAQs

            Frequently asked questions

            L-Theanine, an amino acid found primarily in green and black tea, is thought to help with anxiety by affecting alpha brain waves. Alpha waves are associated with a state of "wakeful relaxation," where you are alert but calm, similar to what's experienced during meditation. This can help reduce feelings of nervousness and agitation.
            Yes, L-Theanine may support your night time regime by promoting relaxation.
            Our L-Theanine capsules fully dissolve within just minutes so your body can get to work asap.
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            Formulated by health experts and nutritionists, our supplements are guided by the latest clinical research.

            Every ingredient is backed by science and refined for maximum effectiveness and absorption.

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