• L Theanine 400 mg | L-Theanine Stress Relief – Extra Strength 400 mg: Each capsule provides a potent dose of – Image 1
  • L Theanine 400 mg | L-Theanine Stress Relief – Stress Relief & Relaxation: L-Theanine promotes alpha brain wave – Image 2
  • L Theanine 400 mg | L-Theanine Stress Relief – Sleep Support: By reducing anxiety and promoting relaxation, it can – Image 3
  • L Theanine 400 mg | L-Theanine Stress Relief – Plant Based & Vegan: Made from plant-derived ingredients, suitable – Image 4
  • L Theanine 400 mg | L-Theanine Stress Relief – Non-GMO & Gluten-Free: Free from genetically modified organisms and – Image 5
  • L Theanine 400 mg | L-Theanine Stress Relief – Lab Tested: Third-party tested for purity, potency, and – Image 6
  • L Theanine 400 mg | L-Theanine Stress Relief – 120 Capsules per Bottle: A two-month supply at the recommended – Image 7
  • L Theanine 400 mg | L-Theanine Stress Relief – Serving Size: 2 capsules – Image 8
  • L Theanine 400 mg | L-Theanine Stress Relief – Servings Per Container: 60 – Image 9
  • L Theanine 400 mg | L-Theanine Stress Relief – Amount Per Serving: 800 mg L-Theanine (400 mg per capsule) – Image 10
  • L Theanine 400 mg | L-Theanine Stress Relief – Other Ingredients: Vegetable cellulose (capsule), rice flour. – Image 11
  • L Theanine 400 mg | L-Theanine Stress Relief – Free of: GMOs, gluten, soy, dairy, artificial colors, – Image 12
  • L Theanine 400 mg | L-Theanine Stress Relief – Storage: Store in a cool, dry place away from direct sunlight. – Image 13
  • L Theanine 400 mg | L-Theanine Stress Relief – Extra Strength 400 mg: Each capsule provides a potent dose of – Image 14
  • L Theanine 400 mg | L-Theanine Stress Relief – Stress Relief & Relaxation: L-Theanine promotes alpha brain wave – Image 15
  • L Theanine 400 mg | L-Theanine Stress Relief – Sleep Support: By reducing anxiety and promoting relaxation, it – Image 16
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L Theanine 400 mg | L-Theanine Stress Relief | Extra Strength Supplement | Lab Tested | Relaxation, Sleep & Calm Support | For Men & Women | Plant Based, Non-GMO & Gluten-Free | 120 Vegan Capsules

L Theanine 400 mg | L-Theanine Stress Relief | Extra Strength Supplement | Lab Tested | Relaxation, Sleep & Calm Support | For Men & Women | Plant Based, Non-GMO & Gluten-Free | 120 Vegan Capsules

£39.72 GBP
£39.72 GBP
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L Theanine 400 mg | L-Theanine Stress Relief | Extra Strength Supplement | Lab Tested | Relaxation, Sleep & Calm Support | For Men & Women | Plant Based, Non-GMO & Gluten-Free | 120 Vegan Capsules

£39.72
£39.72
Save % Sold out
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Product Overview

NUTRAHARMONY L-Theanine 400 mg offers a powerful dose of the renowned amino acid to help you manage stress, promote relaxation, and improve sleep quality. Each vegan capsule delivers a concentrated 400 mg of L-Theanine, sourced from high-quality plant-based ingredients. Our supplement is rigorously lab tested to ensure purity, potency, and safety, making it a reliable choice for daily wellness. Whether you're looking to calm your mind after a busy day or support restful sleep, this extra strength formula is designed to meet your needs.

Key Features and Benefits

  • Extra Strength 400 mg: Each capsule provides a potent dose of L-Theanine for maximum effectiveness.
  • Stress Relief & Relaxation: L-Theanine promotes alpha brain wave activity, helping you feel calm without drowsiness.
  • Sleep Support: By reducing anxiety and promoting relaxation, it can improve sleep quality and help you fall asleep faster.
  • Plant Based & Vegan: Made from plant-derived ingredients, suitable for vegans and vegetarians.
  • Non-GMO & Gluten-Free: Free from genetically modified organisms and gluten, catering to dietary sensitivities.
  • Lab Tested: Third-party tested for purity, potency, and contaminants to ensure high quality.
  • 120 Capsules per Bottle: A two-month supply at the recommended dosage of two capsules daily.

How to Use

Take two vegan capsules daily with water, preferably on an empty stomach for optimal absorption. For sleep support, take one to two capsules 30-60 minutes before bedtime. Consistency is key; use daily for best results. Do not exceed the recommended dosage unless advised by a healthcare professional.

Who It Is For

This L-Theanine supplement is ideal for adults seeking natural stress relief, improved focus, and better sleep. It's suitable for men and women, especially those with busy lifestyles, students, professionals, and anyone looking to enhance their mental well-being. The plant-based and allergen-free formula makes it accessible to those with dietary restrictions.

Why Choose This Product

NUTRAHARMONY is committed to quality and transparency. Our L-Theanine supplement is manufactured in a GMP-certified facility and undergoes rigorous lab testing to ensure you receive a pure and potent product. We prioritize natural ingredients and avoid unnecessary additives. With 400 mg per capsule, our extra strength formula stands out for its potency and value. Choose NUTRAHARMONY for a trusted, effective, and affordable way to support relaxation and sleep.

Technical Details

  • Serving Size: 2 capsules
  • Servings Per Container: 60
  • Amount Per Serving: 800 mg L-Theanine (400 mg per capsule)
  • Other Ingredients: Vegetable cellulose (capsule), rice flour.
  • Free of: GMOs, gluten, soy, dairy, artificial colors, preservatives.
  • Storage: Store in a cool, dry place away from direct sunlight.

Experience the calming power of L-Theanine with NUTRAHARMONY. Order today and take a step towards a more relaxed, balanced life.

Delivery in the United Kingdom

Orders are prepared with clear UK 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

NutriSentra 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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  • Free standard deliveryUsually 5–10 business days to the UK, after 1–3 days to prepare
  • 30-day returnsOn unopened items in original packaging
  • Secure checkoutProcessed by Shopify with major cards accepted
  • Real supportEmail or phone, answered by our team

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Buying guide and questions

Supplement guide

L Theanine 400 mg | L-Theanine Stress Relief | Extra Strength Supplement | Lab Tested | Relaxation, Sleep & Calm Support | For Men & Women | Plant Based, Non-GMO & Gluten-Free | 120 Vegan Capsules at NutriSentra

Product OverviewNUTRAHARMONY L-Theanine 400 mg offers a powerful dose of the renowned amino acid to help you manage stress, promote relaxation, and improve sleep quality. Each vegan capsule delivers a concentrated 400...

Category Food Supplement
Delivery area United Kingdom
Checkout Secure checkout
Brand NUTRAHARMONY
Price £39.72
Availability In stock
calm supportextra strengthgluten-freeL-Theaninenon-GMONUTRAHARMONYrelaxationsleep supportstress reliefvegan supplements

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.

Questions about L Theanine 400 mg | L-Theanine Stress Relief | Extra Strength Supplement | Lab Tested | Relaxation, Sleep & Calm Support | For Men & Women | Plant Based, Non-GMO & Gluten-Free | 120 Vegan Capsules

Is L Theanine 400 mg | L-Theanine Stress Relief | Extra Strength Supplement | Lab Tested | Relaxation, Sleep & Calm Support | For Men & Women | Plant Based, Non-GMO & Gluten-Free | 120 Vegan Capsules available for UK customers?

Yes. This product is currently available on NutriSentra with UK 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.

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