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Source Naturals

Serene Science L-Theanine

Item | SN118

  • Helps support relaxation



  • Suitable for vegetarians



  • Gluten, wheat, dairy and soy free


$23.09
Qty
Size
200 mg 60 Tabs

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Supplement Facts

Serving Size 1 Tablet

Amount Per Serving   % Daily Value
Calcium 76 mg 8%
L-Theanine 200 mg

†Daily Value not established.

Other ingredients: dibasic calcium phosphate, microcrystalline cellulose, magnesium stearate, stearic acid, silica, modified cellulose gum, and hydroxypropyl cellulose.

Suggested Use: 1 tablet 1 to 2 times daily.

WARNING: Not for use by 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 using this product.

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

  • Suitable for vegetarians and HYPOALLERGENIC: contains no yeast, dairy, egg, gluten, corn, soy or wheat.
  • Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.
  • Helps support relaxation



  • Suitable for vegetarians



  • Gluten, wheat, dairy and soy free


Help yourself relax with Source Naturals Serene Science L-Theanine! L-Theanine is a 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. Animal studies have shown that L-theanine crosses the blood brain barrier, supporting neurotransmitters within the brain. Human studies have shown that taking L-theanine supports natural rest and relaxation. Hypoallergenic.

Terms and Ingredient Definitions

Shipping Weight: .15 lbs

Vegetarian
Gluten-Free

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

MSRP: $32.98

For our website and catalog, the MSRP is the "Manufacturer's Suggested Retail Price." The MSRP is understood to mean the price at which a manufacturer will recommend a retailer sell a product for in stores, on the internet, or in catalogs. The MSRP of National brand items are dictated to Swanson by each manufacturer. For Swanson brand items, the MSRP is calculated based on a varying percentage above the product's base price.

Disclaimer: Product reviews are provided for informational purposes only. The information or opinions expressed therein are solely those of the contributors and do not necessarily represent those of Swanson Health Products and its employees. Please read full product reviews disclaimer.
1-5 of 7 reviews
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Quality: 5.0 / 5.0
Value: 4.0 / 5.0
Effectiveness: 4.0 / 5.0
Convenience: 5.0 / 5.0
Satisfaction: 5.0 / 5.0
Helpful?
The suntheanine version is...
supposed to be more bioavailable... That's the only reason for the 4 star review. I got this product at a great price. Theanine is a stable, relaxed kind of thing. A simple soother for your day. Source Naturals has been a dependable brand of consistent quality as well. The 200 mg dosage is nice, if you are accustomed to a higher dose. Means taking less capsules.
Quality: 5.0 / 5.0
Value: 5.0 / 5.0
Effectiveness: 4.0 / 5.0
Convenience: 5.0 / 5.0
Satisfaction: 5.0 / 5.0
Helpful?
Quality product
Competitive price for good brand
Quality: 4.0 / 5.0
Value: 5.0 / 5.0
Effectiveness: 5.0 / 5.0
Convenience: 5.0 / 5.0
Satisfaction: 5.0 / 5.0
Helpful?
great product
I would not be without this product. I have been using it faithfully for 11 yrs now and still swear by it.
Quality: 5.0 / 5.0
Value: 5.0 / 5.0
Effectiveness: 5.0 / 5.0
Convenience: 5.0 / 5.0
Satisfaction: 5.0 / 5.0
Helpful?
I have a hard time falling and staying asleep, this product has definetly helps.
Quality: 5.0 / 5.0
Value: 4.0 / 5.0
Effectiveness: 5.0 / 5.0
Convenience: 5.0 / 5.0
Satisfaction: 5.0 / 5.0
Helpful?

Swanson Health started in 1969 in Fargo, ND with a mission to offer pure and potent health products at a great value. Over 50 years later, we continue to innovate science-backed vitamins and supplements, delivering wellness solutions that help people live simply healthier together, and find vitality at any age. Click here to learn more about us.

For over 50 years, Swanson Health's research and development team has delivered science-backed health and wellness products to people around the world. Our innovation is guided by clinical research, scientific consensus, emerging research and usage traditions, creating products that help you find vitality at any age. At Swanson, we don't hide our science behind proprietary formulas — we believe in easy-to-read, transparent labelling. What's printed on our labels, is exactly what you'll find in our products.

Swanson Health's purity and potency testing begins with our ingredient sourcing, continues through manufacturing, and goes beyond when a product hits the shelf. Our testing exceeds industry standards, ensuring each product meets our quality guarantees for purity and potency. Swanson facilities are Good Manufacturing Practices (GMP) certified, and we voluntarily participate in third-party, independent laboratory testing. With Swanson, you can be sure you're getting the most pure and potent health products at a great value. Click here to learn more about our quality standards.

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