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Source Naturals

Serene Science L-Theanine

Serene Science L-Theanine

Item: SN828

  • Unique amino acid found almost exclusively in tea plants



  • Promotes natural relaxation



  • Hypoallergenic


200 mg 120 Caps

$46.55
MSRP $66.50
Save 30%
Yes! I want free shipping over $50 on my next automatic shipment of this item.  days. Learn more
Quantity
Usually Ships Within 2-4 Business Days

Supplement Facts

Serving Size 1 Capsule

  Amount Per Serving %Daily Value
L-Theanine 200 mg

†Daily Value not established.

Other ingredients: microcrystalline cellulose, gelatin (capsule), silica, and magnesium stearate.

Suggested Use: 1 capsule 1 to 2 times daily.

WARNING: Not for use by infants, children, or women who are pregnant, may become pregnant, or breastfeeding. If you are taking any antidepressant drugs, such as MAOIs or SSRIs, consult your health care professional before taking this product.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

  • HYPOALLERGENIC: contains no yeast, dairy, egg, gluten, corn, soy or wheat.
  • Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

Shipping Weight

.19 lbs

  • Unique amino acid found almost exclusively in tea plants



  • Promotes natural relaxation



  • Hypoallergenic


L-Theanine from Source Naturals is a dietary supplement featuring this unique amino acid found almost exclusively in the tea plant (Camellia sinensis) and is the primary ingredient contributing to the unusual taste of green tea. Research has shown that L-theanine crosses the blood brain barrier, supports healthy neurotransmitter levels and inhibits the stimulatory properties of caffeine. Human studies have shown that taking L-theanine results in the emission of brain waves associated with a state of relaxation.

Source Naturals Serene Science L-Theanine Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Swanson Quality Assurance

Why Shop Swanson®?

We know how important your health is to you and your loved ones. That’s why we’re focused on delivering only high quality products you can trust at the best value.

Our lab evaluates every product to make sure it’s compliant with strict standards and government regulations, and we fully believe in and stand behind our products. If you’re dissatisfied for any reason, we’ll give you a full refund and pay return shipping.

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We are dedicated to offering the highest quality products at the best price. Find out more about how we ensure such a high standard in everything we do.

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200 mg 120 Caps

200 mg 30 Caps

200 mg 60 Caps

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