• Eco-friendly sage green box containing 90 capsules of 200mg L-Theanine by Everyday Supplements, designed for daily cognitive support in minimalist, plastic-free & sustainable packaging.
  • Back of Everyday Supplements eco-friendly sage green box containing 90 capsules of 200mg L-Theanine by Everyday Supplements, with details about ingredients and instructions on how to take it.
  • Close-up of Everyday Supplements sleek sage green packaging, featuring the brand name in minimalist white font and the tagline 'be your best every/day', a reminder to prioritise wellbeing every single day.
  • Close-up of 200mg L-Theanine capsules displayed on a black background, premium food supplement in vegan capsule form
  • Lifestyle product photo featuring Everyday Supplements sage green packaging alongside a cup of coffee and L-Theanine capsules arranged neatly on a tray, a calm morning ritual captured in a minimal, modern setting.
  • Everyday Supplements sage green packaging lying face up on a flat surface, with the matching lid positioned upright next to it, highlighting the minimal, eco-friendly design and thoughtful, user-friendly packaging.
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  • Everyday Supplements’ L-Theanine capsules photographed on a soft green backdrop, illuminated by gentle lighting to highlight the purity and simplicity of the product
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L-Theanine Capsules | 200mg | 90 Capsules

L-Theanine Capsules | 200mg | 90 Capsules

£27.99 GBP
£27.99 GBP
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3 months supply | 90 capsules |  200mg per capsule.

Every batch of our L-Theanine is third-party tested in ISO 17025 accredited labs for quality and purity.

We do not add any fillers or additives to our supplements. 

Ingredients

L-Theanine, Hydroxypropyl Methylcellulose (HPMC vegan capsule shell)

Nutritional Information

200mg L-Theanine per capsule

Benefits

L-Theanine offers a wide range of benefits, making it an excellent choice for those looking to enhance both mental and physical wellbeing:

  • Stress Reduction: Studies have shown that L-Theanine can help reduce stress and anxiety. Research published in Nutrients (2019) demonstrated that L-Theanine intake significantly reduced stress-related symptoms.
  • Improved Cognitive Function: A study in the Journal of Medicinal Food (2021) found that L-Theanine improved attention, memory and executive function, making it a great option for boosting mental acuity.
  • Elevated Mood: A systematic review and meta-analysis in Nutrition Reviews (2014) found evidence that L-Theanine positively influenced mood, improving alertness, calmness and contentedness.
  • Better Sleep Quality: If you struggle with sleep issues, L-Theanine can help you wind down and fall asleep faster. A systematic review and meta-analysis published in Sleep Medicine Reviews (2025) found that L-Theanine improved sleep quality, reduced time to fall asleep and improved daytime wakefulness.
  • Antioxidant Support: Research in Toxicology and Applied Pharmacology (2024) found that L-Theanine has antioxidant properties that protect cells from oxidative stress and free radical damage.
  • Works together with caffeine: L-Theanine works synergistically with caffeine, improving cognitive performance, reducing caffeine-induced jitters and preventing an energy crash. Studies in Nutritional Neuroscience (2008) and the Journal of the International Society of Sports Nutrition (2023) confirmed this powerful combination for sustained focus and energy, with greater cognitive benefits than caffeine alone.

These benefits make L-Theanine a valuable addition to your daily routine for stress reduction, cognitive enhancement and overall wellbeing.

How to take

Take 1-2 capsules daily with water or food, day or night.

Do not exceed the recommended daily intake. Store in a cool, dry place. Food supplements must not be used as a substitute for a varied diet and a healthy lifestyle. Keep out of reach of children. For best before date & batch number please see base of pack.

Shipping

We do our very best to get your order to you as soon as we can. All UK orders will be shipped within 1-5 working days.

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Benefits of L-Theanine

  • Image of leaf to represent L-Theanine's ability to provide a sense of calm.

    Promotes a sense of calm

  • A calm image to represent L-Theanines ability to reduce anxiety.

    Helps to
    reduce anxiety

  • A line going up to represent the ability of L-Theanine to elevate mood and improve sleep.

    Elevates mood and improves sleep

  • Image of leaf to represent L-Theanine's ability to provide a sense of calm.

    Enhances focus
    and mental clarity

  • Squiggly line to represent L-Theanines ability to counteract side effects of caffeine

    Counteracts side
    effects of caffeine