Life Extension L-Theanine helps you relax and keeps mood steady with AlphaWave L-Theanine, giving you calm focus without sedation so you glide through busy days with steadier energy and clarity. Life Extension has long championed science-led supplements and this bottle keeps that promise with trusted quality and rigour. AlphaWave L-Theanine is a branded extract from tea and the capsules are non-GMO and gluten-free.

Available Sizes & Variants:

60 vegetarian capsules - convenient daily dose for two months.

Benefits & Features:

• Calm focus without drowsiness is possible with this formula.
• Supports mood balance for steadier days during stress.
• AlphaWave L-Theanine is the star ingredient behind reliable calm.
• Non-GMO and gluten-free ingredients provide peace of mind for daily use, with clear sourcing and careful formulation that keeps things simple and easy to integrate into your routine.
• Suitable for daily use with flexible dosing to fit your routine.

Life Extension has built a reputation for science-led supplements, and this L-Theanine keeps that promise with a branded AlphaWave ingredient derived from tea for consistency across batches. The non-GMO, gluten-free capsule aligns with clean ingredient standards, while L-Theanine’s gentle action supports alpha brain waves and balanced mood, helping you feel calm without heaviness. For those seeking a broader daily routine, this vitamin d supplement can complement a balanced lifestyle, and magnesium glycinate may be considered as part of a well-rounded approach alongside probiotics for gut and overall wellbeing.

Other Ingredients - Microcrystalline cellulose, vegetable cellulose (capsule), silica, vegetable stearate.

• GTIN: 737870168362
• Manufacturer: Life Extension
• Categories: CHECKOUT UPSELLLife ExtensionNew Arrivals
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Consume one capsule up to four times a day, or follow the advice of a healthcare provider.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: L-Theanine

L-Theanine is an amino acid known for its role in supporting relaxation and mood regulation. This form is AlphaWave L-Theanine, supplied from tea, and is used to provide a calming effect without sedation.

This ingredient is typically provided as a branded amino acid form derived from tea sources to support its natural physiological role.

What Does L-Theanine Do?

L-Theanine helps support brain activity associated with calmness and balanced mood, and it can influence neurotransmitter regulation to promote a relaxed mental state. It may also influence alpha-brain wave activity and reduce excitatory signaling in the brain, aligning with approved functional claims for normal brain function.

EFSA and NHS context emphasise normal physiological roles for these processes, with the mechanism involving balanced neurotransmitter action and brain activity that supports everyday wellbeing.

*This product is not intended to diagnose, treat, cure, or prevent any disease.

Dietary supplements are not a replacement for a balanced diet. Do not take more than the recommended amount. Keep in a cool, dry area away from light and heat. Ensure they are out of children's reach and view.

Life Extension satisfies Welzo's strict partner criteria through a proven commitment to science-led supplementation and reliable manufacturing heritage. This brand is renowned for delivering trusted, evidence-informed products within the dietary supplement space, aligning with our emphasis on credibility, transparency and responsible sourcing. Life Extension uses AlphaWave® L-Theanine, a branded form, which signals a recognised standard of ingredient integrity and processing. The product line is non-GMO and gluten-free, underscoring Life Extension’s quality consistency across formulations. Our evaluation and vetting process recognised the brand’s established reputation for quality manufacturing and product clarity, supported by our team of experts who assess suppliers against our rigorous testing standards. This alignment with our quality expectations is reinforced by Life Extension’s clear formulation approach and dedication to purity. You can learn more about how we scrutinise brands with our expert team of doctors, nurses, and nutritionists and by reviewing our rigorous testing protocols for assurance you can rely on.