L-Theanine (γ-glutamylethylamide) is an amino acid naturally found in green tea. It is widely studied for its ability to help support *relaxation, mood balance, stress reduction, and normal sleep patterns.
L-Theanine is also known for its role in helping the brain regulate *emotions, concentration, alertness, mood, appetite, and overall cognitive performance.
Our high-strength formula delivers 600 mg of pure L-Theanine per capsule, providing a powerful yet gentle supplement ideal for daily cognitive and emotional support.
For an extract supplement to be truly effective, the quality and origin of its raw ingredients matter.
Although herbs grow worldwide, many of the botanical materials used in our supplements come from the Mediterranean and Middle Eastern regions, where:
Full sunlight
Light, well-drained, fertile soil
Moisture-retentive growing conditions
Clean, naturally sheltered environments
help produce ingredients with exceptional potency and purity.
These optimal conditions contribute to a high-intensity extract that delivers reliable benefits and exceptional customer satisfaction.
Although these premium sources cost more, we proudly choose this standard because our goal is to build a trusted, high-quality brand.
600 mg pure L-Theanine per capsule
Smooth, small capsules for easy swallowing
Suitable for vegans, vegetarians, and all diets
Ideal for daily support of mood, focus, mental clarity & relaxation*
Your supplement arrives in a moisture-proof, hygienic stand-up pouch with a resealable zip to maintain freshness.
The pouch is fully recyclable, supporting responsible environmental disposal.
L-Theanine – 600 mg
Take 1 to 2 capsules daily with a glass of water.
Recommended for adults only.
Contains NO:
Lactose
Gluten
Yeast
Soy
Wheat or dairy
Artificial colours or preservatives
Genetically modified substances (GMOs)
This product is a dietary supplement and is not intended to diagnose, treat, cure, or prevent any illness or disease.
For diagnosis or treatment, consult your physician.
Suitable for adult use only.
At SBM, we are committed to delivering high-quality, clean, and effective nutritional supplements designed to support your everyday wellbeing.
We specialise in high-strength herbal extracts, vitamins, and wellness formulas, carefully selected from trusted sources around the world. Many of our ingredients are traditionally grown in regions such as the Mediterranean and Middle East, where herbs thrive in natural, nutrient-rich environments.
All NutraCore products are:
Manufactured with strict quality standards
Vegan friendly and responsibly sourced
Designed for purity, strength, and consistency
Packed in hygienic, eco-friendly packagingOur mission is simple:
To provide premium supplements at accessible prices, without compromising on quality.
With thousands of happy customers across the UK and worldwide, SBM continues to grow as a trusted brand for those seeking natural wellness support and daily vitality.
Why Choose SBM?
High-Strength Formulas
UK-Based Brand
Vegan Friendly Options
Clean & Natural Ingredients
Fast UK Dispatch
Trusted by Thousands of Customers
PAYMENT POLICY
We offer safe and secure payment options:
Debit / Credit Card
PayPal
Apple Pay / Google Pay
Shopify secure checkoutAll transactions are encrypted and protected to ensure your personal data remains safe.
SHIPPING POLICY
UK Shipping
Orders are processed within 12 working days
Sent via Royal Mail or tracked courier services
Standard delivery time: 24 working days
International Shipping
We ship worldwide
Delivery time varies between 512 working days depending on destination
Tracking is provided on most international orders
Important Notes
Please ensure your delivery address is correct before placing your order
International customers are responsible for any customs or import duties
During busy periods or customs delays, delivery may take slightly longer
By using our eBay Shop and purchasing from SBM, you agree to the following terms.
1. Products
NutraCore sells food supplements and herbal products for general wellbeing.
Our products are not intended to diagnose, treat, cure, or prevent any disease. Always consult a healthcare professional before use.2. Orders & Payment
All prices are in GBP (£) and include VAT where applicable.
We accept secure payments via Card, PayPal, Apple Pay and Google Pay.3. Shipping
Orders dispatched within 12 working days
UK delivery: 24 working days
International delivery: 512 working days
Customers are responsible for any customs or import charges.
We accept returns within 30 days if the item is unopened and in original condition.
Opened items cannot be returned for hygiene reasons unless faulty.
Orders can be cancelled before dispatch only. After dispatch, our return policy applies.
NutraCore is not responsible for misuse of products or individual reactions.
Please read ingredients carefully before use.
Your data is handled securely in line with UK GDPR. We do not sell your personal information.
We may update these Terms at any time. Continued use of the website means you accept the updated terms.
These terms are governed by the laws of England & Wales.
RETURNS & REFUND POLICY
We want you to shop with confidence.
Returns accepted within 30 days of delivery.
You may return your item if:
The product is unopened and in original condition
The item is faulty, damaged, or incorrectReturn Process
Contact us with your order number
We will provide return instructions
Once received, we will issue a refund or replacement
Return Shipping
If the item is faulty or incorrect we cover return cost
If you changed your mind buyer covers return postage
(Aligned with standard eBay return conditions )
Important
Due to hygiene reasons, we cannot accept returns on opened supplements unless faulty.