Doctor’s Best  |  753950001978  |  Barcode: 753950001978

L-Theanine 150 mg | With Suntheanine - 90 capsules

€31,45 €34,95
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L-Theanine 150 mg | With Suntheanine - 90 capsules

  • Promotes relaxation without drowsiness
  • Improves sleep quality
  • Increases mental acuity
  • Reduces tension and nervousness
  • Contains 100% Suntheanine

L-Theanine 150 mg with Suntheanine is a patented form of the amino acid L-theanine, which is extracted from green tea. This amino acid is known for its relaxing, non-drowsy properties. L-Theanine promotes an alert yet calming state by increasing alpha brain waves and decreasing beta waves. This means you can feel calm and focused without losing your focus.

Scientific studies show that L-theanine can cross the blood-brain barrier within 30 minutes of ingestion, delivering its beneficial effects directly to the brain. Taking L-Theanine can significantly improve sleep quality, increase mental acuity, and reduce stress and tension.

It is important to note that L-Theanine is not a substitute for a healthy lifestyle and should not be used in the presence of specific contraindications or allergies. Always consult your doctor before starting to take dietary supplements, especially if you have existing health conditions or are taking medications.

Choose Feel You for the best value for your dietary supplement shopping from the number one liquid supplement brand. We offer quality products at affordable prices and fast delivery, making your shopping convenient and safe.

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Delivery Terms

Shipping Information by Zone

📦 Zone 1

Countries: Bulgaria, Greece, Romania

Delivery Time: 2–5 business days

Shipping Cost: €5.00 (for orders under €50)

Free Shipping: for orders over €50

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Countries: Croatia, Hungary, Slovenia, Czech Republic, Slovakia, Poland

Delivery Time: 4–6 business days

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Delivery Time: 6–9 business days

Shipping Cost: €5.00 (for orders under €100)

Free Shipping: for orders over €100

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Countries: Belgium, France, Netherlands, Spain, Portugal, Luxembourg

Delivery Time: 6–9 business days

Shipping Cost: €7.00 (for orders under €100)

Free Shipping: for orders over €100

📦 Zone 5

Countries: Estonia, Latvia, Lithuania

Delivery Time: 7–10 business days

Shipping Cost: €5.00 (for orders under €100)

Free Shipping: for orders over €100


Important Notes:

  • Order processing: All orders are processed within 1–3 business days. You will receive a tracking number via email once your package is shipped.
  • Delivery times are estimates and may vary due to customs, local holidays, or other external factors.
  • Free shipping is applied automatically when the order total exceeds the zone-specific threshold.
  • If your country is not listed, please contact us for a custom shipping quote.