Pure L-Theanine Supplement

L-Theanine supplements offer a wide range of benefits, making then 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 supplements a valuable addition to your daily routine for stress reduction, cognitive enhancement and overall wellbeing.

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

200mg of 99%+ Pure L-Theanine per capsule

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.

We do our very best to get your order to you as soon as we can. We aim to pack and ship orders within 1 working day.

We ship all orders via Royal Mail:

UK Standard Delivery: 2-5 Working Days
UK Express Delivery: 1-2 Working Days

We offer FREE UK Express Delivery on orders over £50.

Our shipping policy can be found here.

We have a 14-day return policy, which means you have 14 days after receiving your item to request a return for a refund. Once you've told us you wish to cancel, you have another 14 days to return the goods. Our refund and returns policy can be found here.

To start a refund and return, you can contact us at support@everydaysupplements.co.uk.