How to use L-Theanine

When?

L-Theanine can be taken at any time. Some prefer to take before bed. 

How much?

Take 1 serving, 1 x 200mg capsule.

How?

Swallow with a drink with or without a meal.

How often?

Take 1-2 servings per day.

What Makes Our Capsules Different.

❌ Added Nasties - No Fillers, Binders Or Flow Agents. Just Pure Raw Material.

When it comes down to the manufacturing process, we prefer to keep it local! So local infact that we manufacture everything ourselves in-house inside our ISO9001 Class 7 & HACCP Certified Lab!

Our laboratory consist of top of the range machinery. This is key as it allows us to produce our Life Essential products as clean & concise as possible. Meaning we can remove any added nasties commonly used in supplements today to cut cost and time! This ensures our customers have the most clean, raw experience possible.

Learn about our ingredients

L-Theanine

99% Extract

200mg Per Serving

L-Theanine

Calm

WHAT IS L-THEANINEI?

L-theanine is a naturally occurring amino acid commonly found in the leaves of the tea plant, particularly in green and black tea. It is one of the key compounds that contributes to the unique composition of tea and has been the subject of ongoing nutritional and scientific research. First identified in Japan in the mid-20th century, L-theanine is now widely used in food supplements and functional formulations.

BIOACTIVE COMPOUNDS

L-Theanine

EQUIVALENT

N/A

STUDIES

Why L-Theanine Capsules?

Opting for L-theanine capsules provides a simple way to include this naturally occurring amino acid as part of a daily supplement routine. Commonly found in the leaves of the tea plant it offers a convenient and consistent format compared with consuming tea alone, making it easy to incorporate this tea-derived ingredient into modern supplement routines.

Key Features:

Amino acid naturally found in tea leaves

Traditionally Used Ingredients

Precisely measured dosage per serving

Compatible with a wide range of supplement stacks

Designed for Everyday Use

Why Choose Life Essentials?

All Life Essentials products are formulated and manufactured in the UK at our ISO 9001 and HACCP certified facility. By producing our supplements in-house, we maintain strict control over quality, hygiene, and food safety throughout every stage of the manufacturing process.

Family-run UK business

⁠'Filler-free' Capsules

Vegan friendly options available

Buy direct from our UK manufacturing facility

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No Fillers, Binders or Flow Agents

High Strength Extracts

Manufactured in the UK

Quality-Focused Ingredients

ISO9001 & HACCP Certified Facility

Direct From the Manufacturer

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Everything You Need to Know!

Frequently Asked Questions

L-theanine is an amino acid found primarily in tea leaves, especially green tea. It promotes relaxation without sedation, helping to reduce stress and anxiety by increasing levels of neurotransmitters like dopamine and serotonin in the brain.

Known for its calming effects, L-theanine can improve focus and cognitive function, making it popular as a natural supplement for mental clarity and mood enhancement. It’s often used to complement caffeine due to its ability to mitigate caffeine’s jittery effects while maintaining alertness. L-theanine is generally well-tolerated and considered safe, offering a non-pharmacological option for those seeking stress relief and improved mental performance.

Yes, L-Theanine is legal and approved as a food supplement in the UK. It is commonly used in capsule and powder form and regulated under general food law.

Yes. Life Essentials Reishi Mushroom is 100% vegan and contains no animal-derived ingredients.

A common dose is 200mg once daily. Always follow the product label instructions and consult your healthcare provider if unsure.

L-Theanine is a naturally occurring amino acid found in green tea, traditionally used to promote a sense of calm and focus. While we cannot make medical claims, many users take it to support everyday mental performance and relaxation.

Many people take it in the morning or afternoon for calm focus. It can also be taken before bed, depending on your personal wellness goals

To ensure the freshness and effectiveness of our products, store them in a cool, dry place away from direct sunlight. Always keep them out of reach of children.

The Buyer shall inspect the goods forthwith upon delivery and shall within five days of delivery notify the Seller in writing of any matter or reason whereof the buyer alleges that the goods are not following the contract.

The return of any goods will not be accepted unless the Seller or its authorised representative shall first have had the opportunity to consider the Buyer’s reasons for returning the goods and to accept the return thereof. If the Buyer shall fail to give notice as aforesaid the goods shall be deemed to be in all respects following the contract and the Buyer shall be deemed to have accepted the goods. An Authorisation Reference Number will be given to enable the Buyer to return the goods.
NO goods will be accepted without a Reference Number.

Damaged goods claims will be processed within 5 working days of notification, as will shortfalls in the order.

If the Buyer mistakenly ordered the wrong product, the Seller will refund the cost of the goods (less the initial delivery charge) when they are received back by the Seller in a re-saleable condition. The cost of return shall be paid by the Buyer and will not be refunded.

All goods that are being returned must be re-packed to the same standard of protection as when the Buyer received them. Returned goods that are damaged in transit due to poor packaging will NOT be refunded and will be returned to the Buyer.

All returns must be sent back to the Seller by registered post or by other means that require a signature of receipt of the goods at the seller’s warehouse or reception.

The guarantee covers any manufacturer defects and covers any repairs, or replacements if deemed to be faulty or beyond repair. If the product has been damaged in any way by the customer we reserve the right to refuse a refund or return. E-Liquids will only be accepted for return if they are in a re-saleable condition, unopened and the tamper-proof protection remains intact. Returns due to incompatibility. Goods that appear not to work with particular hardware are often labelled as being faulty. However, this is not usually the case. If the items show to be faulty after the Seller has tested the products, the Buyer shall then be refunded for the return postal charge + the goods cost at the time of purchase. However, if the items returned are only incompatible, the Seller cannot refund the postage cost. As the items are not faulty, the Seller cannot accept responsibility for this. It is, therefore, the Buyer’s responsibility to check any compatibility information available before purchase.

No Compromises on Quality

We believe in being completely transparent about what we do. That’s why we’re committed to producing supplements that are carefully sourced, clearly labelled, and made to the highest standards.

  • Experienced

    Each and every product has been specially selected for their unique qualities by our extremely experienced and knowledgeable team. All capsules are ‘clean’ meaning they only contain active ingredients.

  • UK Manufactured

    All of our supplements are manufactured in the United Kingdom. All of our raw ingredient suppliers have to go through stringent quality control tests to ensure all ingredients are to the highest order.

  • Clean Capsules

    We don’t use fillers, binders, flow agents, artificial colours or preservatives. All our supplements are meticulously tested so no pesticides or heavy metals get through.

  • Quality Certified

    As part of our quality management services, we have several different accreditations which include HACCP and ISO9001. Our top of the range laboratory is ISO Class 7.

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