Best L-theanine Supplement 2022

This list features the best L-theanine Supplement that is found on the market today. We let the users decide which L-theanine Supplement should make the list, by scanning all the reviews available and bringing you the best selling, and best-reviewed products. We know that shopping online for items can be difficult because you don’t get to experience it first hand. That’s why our lists are built around the ratings and reviews from folks who have!

Check Out Our List of L-theanine Supplement Favorites Below!

SaleBestseller No. 1
NOW Supplements, L-Theanine 200 mg with Inositol, Stress Management*,...
  • STRESS MANAGEMENT*/PROMOTES RELAXATION*: Promotes relaxation without the drowsiness or negative side effects associated with other calming...
  • Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the...
  • HEALTHY VASCULAR FUNCTION*/WITH INOSITOL: Formulation includes inositol, a member of the B-vitamin family that is essential for brain and...
  • CLASSIFICATIONS/CERTIFICATIONS: Vegan, Kosher, Non-GMO
SaleBestseller No. 2
Sports Research Double Strength ‘Suntheanine’ L-Theanine with...
13,446 Customer Reviews
Sports Research Double Strength ‘Suntheanine’ L-Theanine with...
  • ALERT & CALM: L-Theanine is an amino acid commonly found in green tea and is believed to help with relaxation. Suntheanine is patented,...
  • PREMIUM QUALITY: Sports Research is proud to offer products using only the best ingredients available so that you can have total peace of...
  • Our products are made in cGMP compliant facilities in the United States, using only the best ingredients from domestic & international...
  • EASY TO USE: As a dietary supplement, simply take one (1) easy to swallow liquid softgel daily with or without food or as directed by your...
Bestseller No. 3
L-Theanine 200mg by Nature's Trove - 120 Vegetarian Capsules
  • L-Theanine 200mg may promote relaxation without drowsiness. Also may restores a sense of calm.
  • Found naturally in green tea
  • Natural Ingredients - Good Health from the Source!
  • Made in the USA - GMP NSF Certified Facility - Kosher Certified
Bestseller No. 4
Nutricost L-Theanine 200mg, 120 Capsules, Double Strength - Non-GMO,...
  • 120 Capsules of L-Theanine Per Bottle
  • 200mg L-Theanine Per Serving (120 Servings)
  • Easy To Take Capsules
  • Non-GMO, Gluten Free
Bestseller No. 5
NOW Supplements, L-Theanine 100 mg with Decaf Green Tea, Stress...
  • STRESS MANAGEMENT*/PROMOTES RELAXATION*: L-Theanine promotes relaxation while maintaining alertness and promotes healthy cognitive...
  • Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the...
  • HEALTHY VASCULAR FUNCTION*/WITH DECAF GREEN TEA: L-Theanine may also support healthy vascular function through this relaxing effect.* It is...
  • CLASSIFICATIONS/CERTIFICATIONS: Non-GMO, Kosher, Dairy Free, Egg Free, Made without Gluten, Nut Free, Soy Free, Vegan/Vegetarian
SaleBestseller No. 6
L-Theanine 200mg Super Value Size - 365 Vegetarian Capsules
  • SUPER VALUE SIZE - 365 Vegetarian Capsules
  • L-Theanine 200mg may promote relaxation without drowsiness - May restore a sense of calm
  • Found naturally in green tea
  • Natural Ingredients - Good Health from the Source!
Bestseller No. 7
Thorne Theanine - 200mg of L-Theanine - Support a Healthy Stress...
351 Customer Reviews
Thorne Theanine - 200mg of L-Theanine - Support a Healthy Stress...
  • Relaxation: Promotes relaxation, focus, and memory by enhancing alpha-wave production in the brain*
  • Stress: Supports a healthy stress response*
  • GABA: Enhances GABA production in the brain (a brain chemical that acts like a brake during times of runaway stress)*
  • Free From: Every Thorne product is made with the purest possible ingredients - without gluten or other major allergens (eggs, tree nuts,...
Bestseller No. 8
Doctor's Best L-Theanine Contains Suntheanine, Helps Reduce Stress &...
1,921 Customer Reviews
Doctor's Best L-Theanine Contains Suntheanine, Helps Reduce Stress &...
  • Doctor’s Best L-Theanine contains Suntheanine, a pure form of L-Theanine on the market produced via a patented process that mimics the...
  • Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the...
  • CALMNESS – L-Theanine supports relaxation and a sense of calm without causing drowsiness or loss of focus. This amino acid found naturally...
  • SUPPORTS BRAIN HEALTH - L-Theanine is a powerful Amino Acid that enhances cognitive performance and alertness. L-Theanine may help improve...

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Get The Best L-theanine Supplement Today!

We know shopping online can be a hassle. It’s so easy to get overwhelmed by reviews, and misleading product descriptions. We truly do our best so that our users can have the best shopping experience possible. We hope our lists help make your buying decision easier!

What To Know When Choosing A L-theanine Supplement

  • What is my specific application? Not everything is created equal, so you’ll want to make sure that the L-theanine Supplement you choose has the features and specifications you need.
  • Can I be sure that I am buying an authentic L-theanine Supplement? You can! We work with the most reliable, largest online shopping portal in the world. If you have any issues, please refer to the item’s return policy.
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  • What brand should I choose? That’s the best part about our lists. We offer the best selling items from the most well-known and best brands on the market that offer a L-theanine Supplement. Our goal is to give you the easiest experience in buying the brands you know and love.