Money-back Guarantee
If you are not completely satisfied with the product, you will receive your money back immediately – no questions asked.
Money-back Guarantee
If you are not completely satisfied with the product, you will receive your money back immediately – no questions asked.
★★★★★ 1.448 Customers | 8 Answers
Calm Mind, Clear Focus – Osmo L-Theanine Helps You Relax Without Slowing Down
• Premium L-Theanine for stress & focus
• Free delivery in UK
• 24/7 customer support
• 100% money-back guarantee
Reduces daily stress and anxious feelings—without making you sleepy.
Boosts calm, focused energy so you stay sharp even under pressure.
Pairs perfectly with caffeine to smooth out jitters and crash.
Used by over 19,000 people for calm clarity, better sleep, and balanced mood.
No grogginess, no fog—just clean, relaxed focus that lasts.
Supports alpha brain wave activity linked to creativity and mental flow.
Great for work, study, social situations, and winding down at night.
Best Price:
£24 (bundle of 6)
LIMITED SALE
Top 3 Reviews from UK
Megan
★★★★★
Trustpilot Verified Review
Calm without the crash
I take Osmo L-Theanine in the morning before work. It doesn’t make me sleepy—it just takes the edge off. I’m still sharp, just not so tense.
Andre
★★★★★
Trustpilot Verified Review
Meetings don’t drain me anymore
My job’s nonstop Zoom calls and back-to-back deadlines. Since adding Osmo L-Theanine, I’m more even. I don’t get that brain-fog feeling halfway through the day.
Rachel
★★★★★
Trustpilot Verified Review
Exactly what I needed—nothing extra
A lot of calm supplements make me feel out of it. Osmo L-Theanine feels clean, light, and helps me focus without that wired energy. No crash, no weird mood swings.
Shipping: Free for whole UK
Help Desk: 24/7 support via email or live chat
Osmo L-Theanine
(4,8) ★★★★★
£78.00
Total: Only £39
You save £39
MOST POPULAR
6x Osmo L-Theanine
(4,8) ★★★★★
£288.00
Only £24 each
Total: Only £144.00
You save £144
3x Osmo L-Theanine
(4,8) ★★★★★
£198.00
Only £33 each
Total: Only £99
You save £99
MOST POPULAR
6x Osmo L-Theanine
Only £24 each
Total: Only £144.00
Free shipping in whole UK
3x Osmo L-Theanine
Only £33 each
Total: Only £99
Free shipping in whole UK
Osmo L-Theanine
Only £39
Free shipping in whole UK
Secure transaction (256-bit encryption - highest security)
Free shipping within UK
24/7 customer support via chat, email & phone
Payment methods
PayPal
Credit & debit card (Visa, Mastercard)
Instant bank transfer (via Klarna)
Product info
Awards
Secure checkout standards with 256-bit SSL encryption
Osmo L-Theanine was rated the most effective and overall best natural supplement for calm focus, stress support, and cognitive balance in 2025.
- Avasreview.com
Product gallery
Click on a picture to enlarge
Certificates
Osmo L-Theanine is the test winner in the L-Theanine category.
4.6/5 stars in customer satisfaction ratings.
8 questions answered
The most frequently asked questions about Osmo L-Theanine
19,000+ Users Choose Calm Over Chaos – Now It’s Your Turn
Try Osmo L-Theanine Today and Experience What Clear, Relaxed Focus Feels Like
Special Offer
Save big with our time-limited best-price promise
No stress. No crash. Just calm, steady control.
100% natural and backed by our money-back guarantee.
TAKE ADVANTAGE OF THIS OFFERMore customer reviews
George
★★★★★
Verified purchase from Aug 15, 2024
No trouble.
I would recommend this to all of my friends and family.
Karen
★★★★★
Verified purchase from Jul 28, 2024
Great Purchase
Great purchase. Good value
Dale
★★★★★
Verified purchase from Jun 29, 2024
Great product
Great product. The person that received it said it was great and works well.
Ronald
★★★★★
Verified purchase from May 24, 2024
Works like a dream
Great product works like a dream 5star seller arrived in perfect condition would buy from again fast shipping excellent packaging don't hesitate to buy from this company
Kathleen
★★★★★
Verified purchase from May 15, 2024
Easy & Effective
Easy and effective to use.
Nora
★★★★★
Verified purchase from Apr 11, 2024
This is a must buy
This is a must buy. Works as described.
Debra
★★★★★
Verified purchase from May 15, 2024
Good
So far so good👍
*These are real verified reviews and we use pseudo images for illustration purposes.
Copyright © 2024 by Osmo. All rights reserved.