L Theanine High Strength 400mg | 120 Vegan Capsules | Supports Relaxation, Focus & Stress Relief | Fast Absorption | UK Made – Just Vitamins

Price: £11.95
(as of Nov 20, 2025 03:54:08 UTC – Details)

From the brand

Just Vitamins

Certified Supplements Made in The UK Since 2005

Vitamins for Specific Needs

Vitamins for Women’s Health

B Vitamins

Joints & Muscles

Herbal / Botanical

Package Dimensions ‏ : ‎ 20.1 x 12.8 x 4.2 cm; 100 g
Manufacturer ‏ : ‎ Just Vitamins
ASIN ‏ : ‎ B01LZKB8QJ
Item model number ‏ : ‎ Ltheanine400parent
Customer reviews: 4.4 4.4 out of 5 stars 24 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
WHY L-THEANINE? L-Theanine is a stress-relieving amino acid found in tea leaves. It promotes mental alertness and relaxation without the jitters of caffeine. Our high-strength L-Theanine provides the calming benefits of green tea while supporting focus, relaxation, and a balanced mood.
BENEFITS OF L-THEANINE: L-Theanine supports GABA production, promoting relaxation and a calm nervous system. It increases Alpha Brain waves, enhancing focus and mental alertness. Ideal for work, learning, and concentration, it can be taken during the day or before sleep for deeper rest.
PREMIUM SUPPLEMENTS – PREMIUM SERVICE: Just Vitamins has provided high-quality, ethically sourced supplements since 2005. With Platinum-rated Feefo reviews and over 22,000 customer ratings, we ensure top-tier products and service. Manufactured and batch-tested in the UK to strict quality standards.
100% PLASTIC-FREE PACKAGING: Our L-Theanine capsules come in a resealable biodegradable pouch to reduce plastic waste. We are committed to sustainability while delivering fresh, high-quality supplements. Supporting your health and the planet with eco-friendly packaging is at the heart of what we do.
NO RISK GUARANTEE: Our goal is customer happiness, and we stand by our products. If you are unhappy with your L-Theanine capsules, get in touch, and we will be happy to assist you.