Skip to product information
1 of 10

FitPowders L-Theanine Powder 100g – Pure L-Theanine Supplement, Scoop Included, Non-GM, Vegan, Gluten-Free

FitPowders L-Theanine Powder 100g – Pure L-Theanine Supplement, Scoop Included, Non-GM, Vegan, Gluten-Free

Regular price £28.91 GBP
Sale price £28.91 GBP Regular price
Save % Sold out

HOT PRODUCT | LOW STOCK

Carefully selected from trusted wellness brands

Free worldwide delivery

Secure checkout

Buy More Save More!

FitPowders L-Theanine Powder 100g – Pure L-Theanine Supplement, Scoop Included, Non-GM, Vegan, Gluten-Free

Regular price £28.91
Sale price £28.91 Regular price
Save % Sold out
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Tracked worldwide delivery. Estimated arrival between - and -.

Key Benefits of L-Theanine Supplement

L-theanine is a naturally occurring amino acid found primarily in green tea leaves (Camellia sinensis). Unlike many amino acids, it is not used to build proteins but instead plays a unique role in supporting mental state. L-theanine is known for its ability to promote a calm, focused alertness without drowsiness. It works by influencing neurotransmitters such as GABA, serotonin, and dopamine, which help regulate mood, relaxation, and cognitive function. This makes it a popular supplement for those seeking to manage stress and improve concentration.

FitPowders L-Theanine Powder delivers this beneficial amino acid in its purest form—no fillers, additives, or artificial ingredients. Each 100g container provides a generous supply for daily uses, with a convenient scoop included for accurate dosage.

Why Choose FitPowders L-Theanine?

FitPowders is committed to quality and transparency. This L-theanine supplement is manufactured in a GMP-compliant facility, ensuring strict quality control standards. The product is:

  • Pure: No fillers, additives, artificial colours or flavours. Just 100% L-theanine.
  • Non-GM: Made without genetically modified ingredients.
  • Vegan: Suitable for plant-based lifestyles.
  • Gluten-Free: Free from gluten-containing grains.

Each 100g container provides 500 servings (at 200mg per serving), making it an economical choice for daily supplementation. The brand also offers a satisfaction guarantee—if you are not happy with your order, they will provide a full refund.

What Is L-Theanine?

L-theanine is a naturally occurring amino acid found primarily in green tea leaves (Camellia sinensis). Unlike many amino acids, it is not used to build proteins but instead plays a unique role in supporting mental state. L-theanine is known for its ability to promote a calm, focused alertness without drowsiness. It works by influencing neurotransmitters such as GABA, serotonin, and dopamine, which help regulate mood, relaxation, and cognitive function. This makes it a popular supplement for those seeking to manage stress and improve concentration.

FitPowders L-Theanine Powder delivers this beneficial amino acid in its purest form—no fillers, additives, or artificial ingredients. Each 100g container provides a generous supply for daily uses, with a convenient scoop included for accurate dosage.

How to Uses L-Theanine Powder

FitPowders L-Theanine Powder comes with a 1/8 teaspoon scoop that measures approximately 200mg. This is a standard serving size for most purposes. For general relaxation and concentration support, take one scoop (200mg) once or twice daily, with or without food. If you are sensitive to supplements, you can start with half a scoop (100mg) and adjust as needed.

For those looking to enhance focus alongside caffeine, simply add one scoop of L-theanine powder to your morning coffee (which typically contains about 100mg caffeine) or mix it with water or juice if taking caffeine separately. The powder has a subtle, naturally sweet umami flavour that blends well into beverages.

The scoop included is anti-static to help prevent clumping, ensuring accurate measuring every time. Store the powder in a cool, dry place away from direct sunlight.

Frequently Asked Questions About L-Theanine

Is L-theanine safe to take daily?

L-theanine is generally well tolerated and considered safe for daily uses at recommended dosages (200–400mg). As with any supplement, consult your health care provider before starting a new regimen, especially if you are pregnant, nursing, or taking medications.

Can L-theanine help with sleep?

While L-theanine is not a sedative, it may promote relaxation that can aid in falling asleep. Some people take it before bed to support a calm state conducive to rest.

Does L-theanine have any side effects?

Side effects are rare but may include mild headaches or digestive upset in sensitive individuals. Starting with a lower dose can help minimise any potential issues.

Can I take L-theanine with other supplements?

Yes, L-theanine can be combined with most supplements. Its synergy with caffeine is well-documented, but it also pairs well with adaptogens or other mood-supporting ingredients. Always check with a professional if combining multiple products.

Product Specifications

  • Product: FitPowders L-Theanine Powder
  • Net Weight: 100 grammes (3.5 oz)
  • Servings: Approximately 500 (per 200mg scoop)
  • Ingredients: 100% Pure L-Theanine
  • Other Info: Non-GM, vegan, gluten-free, no additives
  • Includes: Anti-static 1/8 tsp scoop

Disclaimer: These statements have not been evaluated by the Medicines and Health care products Regulatory Agency (MHRA). This product 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.

View full details
  • Tracked worldwide delivery

    Clear delivery messaging for shoppers worldwide.

  • Secure checkout

    Secure checkout.

  • Clear returns

    Returns information is written plainly before purchase.

  • Trusted brands

    Carefully selected supplements from established wellness brands.

Supplement guide

FitPowders L-Theanine Powder 100g – Pure L-Theanine Supplement, Scoop Included, Non-GM, Vegan, Gluten-Free at UK Vitality Vitamins

Key Benefits of L-Theanine SupplementL-theanine is a naturally occurring amino acid found primarily in green tea leaves (Camellia sinensis). Unlike many amino acids, it is not used to build proteins but instead plays ...

Category Blended Vitamin & Mineral Supplements
Delivery area Worldwide
Checkout Secure checkout
Brand FitPowders
Price £28.91
Availability In stock
Amino AcidCaffeine CompanionFitPowdersFocusGluten-FreeL Theanine SupplementL-TheanineMood SupportNon-GMPure Powder

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 FitPowders L-Theanine Powder 100g – Pure L-Theanine Supplement, Scoop Included, Non-GM, Vegan, Gluten-Free

Is FitPowders L-Theanine Powder 100g – Pure L-Theanine Supplement, Scoop Included, Non-GM, Vegan, Gluten-Free 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.