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Prescribed For Life L-Theanine Powder (Assay: > 99%) | Theanine Supplement to Support Relaxation and Calmness | Amino Acid Powder | Vegan, Gluten-free, Non GMO (10 kg)

Prescribed For Life L-Theanine Powder (Assay: > 99%) | Theanine Supplement to Support Relaxation and Calmness | Amino Acid Powder | Vegan, Gluten-free, Non GMO (10 kg)

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Prescribed For Life L-Theanine Powder (Assay: > 99%) | Theanine Supplement to Support Relaxation and Calmness | Amino Acid Powder | Vegan, Gluten-free, Non GMO (10 kg)

Regular price £796.25
Sale price £796.25 Regular price
Save % Sold out
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What Is L-Theanine?

L-Theanine is a naturally occurring amino acid found primarily in green tea leaves. Unlike many amino acids, it is not used to build proteins but is known for its ability to promote relaxation without drowsiness. Prescribed For Life offers this amino acid in its purest form—a fine, white powder with an assay of >99% purity, ensuring a high-quality supplement free from additives, fillers, or preservatives.

How to Uses L-Theanine Powder

Dosage can vary based on individual needs, but a typical serving ranges from 100 mg to 200 mg per day. As a pure powder, you can measure your desired amount using a milligram scale. L-Theanine has a slightly sweet taste and dissolves readily in water or your favourite beverage. For best absorption, take it on an empty stomach or between meals. Always start with a lower dose to assess your tolerance, and consult a health care professional before incorporating any new supplement into your routine, especially if you are pregnant, nursing, or taking medication.

Key Benefits of L-Theanine Supplementation

L-Theanine is widely recognized for its ability to help support relaxation and maintain calmness, without the drowsiness associated with some other supplements. As a pure amino acid, it fits seamlessly into a health-conscious lifestyle. Whether added to your morning routine or used as part of a customised blend, this supplement can be a valuable addition to your daily wellness regimen.

Quality and Manufacturing Standards

Prescribed For Life prioritises quality at every step. Their L-Theanine is sourced from reputable suppliers and tested in independent laboratories for identity, purity, and potency. The product is packaged in a GMP-certified facility in the USA, guaranteeing strict adherence to safety protocols. Each batch comes with a certificate of analyse upon request, providing full transparency. This dedication to quality ensures you receive a consistent, reliable supplement you can trust.

Why Choose Prescribed For Life L-Theanine Powder?

Prescribed For Life stands out for its commitment to purity and transparency. Each batch of L-Theanine powder undergoes third-party lab testing to verify its potency and safety. The powder is packaged in the USA in accordance with Good Manufacturing Practices (GMP) guidelines, ensuring consistent quality from production to your doorstep. This bulk option (10 kg) is ideal for regular uses—whether for personal supplementation or creating custom blends. The resealable pouch keeps the powder fresh for maximum shelf life, making it a convenient choice for long-term uses.

Frequently Asked Questions

Is L-Theanine safe for daily uses?

L-Theanine is generally considered safe for daily consumption within recommended dosages. Individual responses may vary, so it is always wise to follow label instructions or a health care provider's guidance.

Is this product vegan and gluten-free?

Yes. Prescribed For Life L-Theanine Powder is vegan, gluten-free, and non-GMO. It contains no animal-derived ingredients, making it compatible with plant-based diets.

How should I store this product?

Store the powder in a cool, dry place. The resealable pouch helps maintain freshness and extends shelf life.

This product is a food supplement and is not intended to diagnose, treat, , or prevent any disease.

Worldwide Delivery

Orders are prepared with clear worldwide delivery expectations from the product page through dispatch. Delivery estimates are shown before checkout where available, and tracking details are sent after the order leaves fulfilment so customers can follow the parcel and plan around the expected arrival window.

Returns and support

UK Vitality Vitamins offers straightforward post-purchase support with a clear returns process. Please check the store returns policy before sending an item back, as final eligibility may depend on product condition, packaging integrity and whether the return request is started within the stated return window.

How to choose

Use the product description, ingredient list, serving information and available variants to compare supplement options. Always check the full ingredient list, directions for use and any allergen information on the product packaging before taking any food supplement.

Ingredients and important information

Ingredient lists and formulations may vary by batch or supplier. Always check the product packaging for the most up-to-date information. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Do not exceed the recommended daily intake. If you are pregnant, nursing, taking medication or have a medical condition, consult your healthcare professional before use.

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Supplement guide

Prescribed For Life L-Theanine Powder (Assay: > 99%) | Theanine Supplement to Support Relaxation and Calmness | Amino Acid Powder | Vegan, Gluten-free, Non GMO (10 kg) at UK Vitality Vitamins

What Is L-Theanine?L-Theanine is a naturally occurring amino acid found primarily in green tea leaves. Unlike many amino acids, it is not used to build proteins but is known for its ability to promote relaxation witho...

Category Amino Acid Supplements
Delivery area Worldwide
Checkout Secure checkout
Brand Prescribed For Life
Price £796.25
Availability In stock
Amino AcidBulk SupplementCalmnessFocusGluten FreeGMPL-TheanineNon GMOPowderPrescribed For Life

How to choose if this supplement fits your routine

Read the ingredient list, check the serving size and directions for use. Consider the supplement form (tablet, capsule, liquid) and whether it suits your dietary requirements. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

What UK Vitality Vitamins shows before checkout

Every product page displays price, availability, variant choices, ingredient information, directions for use, allergen details, worldwide delivery expectations and secure checkout — so you can make an informed decision quickly.

Questions about Prescribed For Life L-Theanine Powder (Assay: > 99%) | Theanine Supplement to Support Relaxation and Calmness | Amino Acid Powder | Vegan, Gluten-free, Non GMO (10 kg)

Is Prescribed For Life L-Theanine Powder (Assay: > 99%) | Theanine Supplement to Support Relaxation and Calmness | Amino Acid Powder | Vegan, Gluten-free, Non GMO (10 kg) available with worldwide delivery?

Yes. This product is currently available on UK Vitality Vitamins with free worldwide delivery.

How should I compare this with similar supplements?

Compare the active ingredients, serving size, number of servings per container, supplement form, brand reputation and price per serving. Check allergen information if relevant to your dietary needs.

Where can I find delivery and returns information?

Delivery information is shown near the add to basket area. Returns guidance is available on the product page and full terms are covered in the store returns policy.

Supplement shopping with clarity

UK Vitality Vitamins product pages display ingredients, directions, allergen details and delivery information clearly — so you can compare supplements and make informed choices quickly.