Black Friday Sale Starts Now. 50% Off Site Wide. Use Code: "BF50"
sexual health & libido
Discreet Packaging
Plain packaging, no identifying features
Confidential Service
All of your information stays private
High Quality Product
The highest quality of product, that works

L-Theanine 400mg Capsules

£29.99
  • Contains: 60x Servings
  • Capacity: 120 Capsules

L-Theanine is a unique amino acid found almost exclusively in tea leaves, and it's celebrated for its incredible ability to promote a state of relaxed alertness without causing drowsiness.


Want it tomorrow?
Order within 00H 00M 00S
Checkout Today. Interest Free
Buy now, Pay in 30 days
Pay in 3 monthly instalments of £10.00
Buy Now Pay in 30 Days. No fees
Shop now and pay in 30 days. No fees.
  • Add item(s) to your cart.
  • Go to checkout and choose Klarna.
  • Enter your debit or credit card information.
  • To check your eligibility, Klarna will perform a soft search with a credit reference agency. This will not affect your credit score.
  • Pay in 30 days. No fees.

You must be 18+ to use this credit offer. Klarna uses soft searches with credit reference agencies. These do not affect your credit rating. Missed payments can affect your ability to use Klarna.

3 interest-free payments. No fees
Pay in 3 interest-free payments so you can spread the cost. No fees.
  • Add item(s) to your cart.
  • Go to checkout and choose Klarna.
  • Enter your debit or credit card information.
  • To check your eligibility, Klarna will perform a soft search with a credit reference agency. This will not affect your credit score.
  • Spread the cost in 3 interest-free payments. The first payment is made at point of purchase, with the remaining 2 payments scheduled automatically every 30 days. No fees.

You must be 18+ to use this credit offer. Klarna uses soft searches with credit reference agencies. These do not affect your credit rating. Missed payments can affect your ability to use Klarna. Pay in 3 instalments complete.

Brown rice flour, L-theanine, shell capsule (hydroxypropyl methycellulose), pyridoxine hydrochloride (vitamin B6)

Full Description

L-Theanine is a unique amino acid found almost exclusively in tea leaves, and it's celebrated for its incredible ability to promote a state of relaxed alertness without causing drowsiness.

Key Benefits of L-Theanine:

  • Promotes Relaxation Without Sedation: L-Theanine works by stimulating the production of calming alpha brain waves. These waves are associated with a state of "wakeful relaxation," similar to what you experience during meditation. Say goodbye to jitters and hello to a smooth, peaceful calm.

  • Enhances Focus and Cognitive Performance: By reducing mental clutter and stress, L-Theanine helps sharpen your concentration. When taken with caffeine (like in a cup of coffee or green tea), it is particularly effective at supporting sustained focus and attention, improving task performance without the usual crash or over-stimulation.

  • Supports Healthy Stress Response: Life throws curveballs, but L-Theanine can help you maintain your cool. It aids your body in managing everyday stress and tension, promoting a more resilient and positive mood.

  • Improves Sleep Quality: While not a sedative, L-Theanine taken before bedtime can help you unwind and prepare for rest by promoting relaxation, making it easier to fall asleep and enjoy a deeper, more restorative night

Why Choose Our L-Theanine Supplement?

Premium Grade: We provide a high-quality, pure L-Theanine formulation for maximum efficacy.

Easy to Incorporate: Our convenient capsules make it simple to add this powerful amino acid to your daily routine, whether you need a morning boost of focus or an evening dose of calm.

How to Use Oil Drops

Follow our helpful guide on using CBD oil drops.

Read Guide
CBD Disposable Vapes

A range of flavours in either 300mg or 1500mg

SHOP DISPOSABLES
Our CBD Oil Range

We have a range of CBD oils, with fruity and natural flavours.

Shop Oil Range

What our Ambassadors say..

Jade Jones

Jade Jones

Jade is simply a superstar in British taekwondo and has been world taekwondo Olympic champion two times over. Jade has been using our CBD products for a number of years.

"I use CBD for my sports recovery - always good to have to hand after a hard training session"
John Hartson

John Hartson

Life after football presented John with different challenges, which he met head-on and won just like all the Ariel duels he won during his playing days. We at Supreme CBD can’t express how happy we are to have John as an ambassador.

"Its been really beneficial for me, and what I would say to people who haven't tried it - just give it a go"
Dean Windass

Dean Windass

Dean Windass is a former professional footballer who played as a striker. He played spells at Bradford City and contributed to his hometown team Hull City's promotion to the Premier League in 2008.

"I religiously take CBD oil 2 hours before bed, it helps me to switch off at night. I also use it to help me with my nerves and it really helps"

You May Also Like

of