100% Customer Satisfaction Guarantee

America's #1 Rated Catalog/Internet Merchant
Based on Customer Satisfaction

Source Naturals

L-Theanine

Swanson $8.19
Retail $15.98 Save 49%
Add To Order
Add to Favorites

Recently Viewed Items

Look here for an easy way to
navigate to your previously
viewed products.

Item:
SN464
Availability:
In Stock
Size:
200 mg 30 Tabs
Vegetarian
Gluten Free
  • Amino acid found in green tea



  • Vegetarian



  • Gluten free


L-theanine is a unique amino acid found in the plant Camellia sinensis and is the primary ingredient contributing to the unique taste of green tea. Source Naturals L-Theanine delivers 200 mg L-theanine per serving. Supports dopamine and GABA levels in the brain and inhibits the stimulatory properties of caffeine. Suitable for vegetarians. Hypoallergenic.

Product Label

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 taking 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.

Terms and Ingredient Definitions

Source Naturals L-Theanine Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

7 Leaf Guarantee

Swanson’s 7-Leaf Guarantee

Earning your trust is our first
and only priority.

Top of Page