L-Theanine supplements
Our pick
View at My Protein →
Origin Pre-Workout Sample
My Protein
150 mg per serving
$3.99
Most l-theanine per dollar of the 140 products here
Release the power of Origin Pre-Workout. A hard-hitting no-nonsense formula, packed with optimal doses of key pre-workout ingredients, including citrulline malate, beta alanine, and caffeine to elevate your training to…Release the power of Origin Pre-Workout. A hard-hitting no-nonsense formula, packed with optimal doses of key pre-workout ingredients, including citrulline malate, beta alanine, and caffeine to elevate your training to new heights.1 Success starts before you enter the gym. Unlock your potential with Origin Pre-Workout. Clumpy Pre-Workout We're aware that our pre-workout may start to clump overtime
Comparison
- 140 products contain l-theanine
- 17 of those contain l-theanine and nothing else
- L-Theanine is widely stocked — carried by 5 merchants
Serving size across these products log scale
100 mgtypical
150 mgour pick
8 mg
350 mg
Lowest priced
Bottle price only. Container sizes vary and servings per container are not stated consistently, so this is a starting point rather than a like-for-like comparison.
A Gorilla Mind Product The Most Efficacious Energy Drink Completely unique & potent active…A Gorilla Mind Product The Most Efficacious Energy Drink Completely unique & potent active ingredients profile Perfect synergy of taste & efficacy 4 delicious sugar-free flavors NO artificial colors
$3.99
100 mg per serving
No water. No mixing. No fuss. Elevate your workouts easier than ever with Origin Pre-Workout…No water. No mixing. No fuss. Elevate your workouts easier than ever with Origin Pre-Workout Dry Scoop. We've infused our powerful pre-workout blend with a revolutionary 'fast melt' ingredient engineered to dissolve quickly and safely on your tongue. This potent, no-nonsense formula is a powerhouse blend, loaded with essential pre-workout ingredients such as citrulline malate, beta-alanine, caffei
$3.99
100 mg per serving
Release the power of Origin Pre-Workout. A hard-hitting no-nonsense formula, packed with…Release the power of Origin Pre-Workout. A hard-hitting no-nonsense formula, packed with optimal doses of key pre-workout ingredients, including citrulline malate, beta alanine, and caffeine to elevate your training to new heights.1 Success starts before you enter the gym. Unlock your potential with Origin Pre-Workout. Clumpy Pre-Workout We're aware that our pre-workout may start to clump overtime
$3.99
150 mg per serving
Includes Theanine and High Potency Vitamin B6 • Supports Healthy Sleep, Calmness and…Includes Theanine and High Potency Vitamin B6 • Supports Healthy Sleep, Calmness and Relaxation • Vegan • Dietary Supplement
$4.31
25 mg per serving
100 mg 5-HTP and 300 mg Green Tea Extract • Promotes Healthy Metabolism & Mental Well-Being…100 mg 5-HTP and 300 mg Green Tea Extract • Promotes Healthy Metabolism & Mental Well-Being for Dieters • Targeted Wellness • Potency - Purity - Pride • Dietary Supplement • Chromium: As ChromeMate®, a patented, niacin-bound chromium complex. Chromium is an essential trace mineral required for normal protein, fat and carbohydrate metabolism. • Green Tea Extract: High-quality, standardized extract
$6.39
10 mg per serving
Most l-theanine per serving
Ranked by the amount stated on the label. mg is the unit most brands use for l-theanine, and only products measured that way are ranked here — the other 1 use a different unit and can't be compared like for like, but they are still listed above by price. Serving sizes differ between brands, so check the label for how many capsules or tablets that is.
A Legion Product Naturally Sweetened and Flavored Thermogenic Pre-Workout 503 peer-reviewed…A Legion Product Naturally Sweetened and Flavored Thermogenic Pre-Workout 503 peer-reviewed scientific studies support ingredients & doses Clinically effective doses of 8 lab-tested ingredients No added sugars or other unnecessary junk Third-party lab-tested for purity & accuracy
350 mg
$29.99
A Legion Product Naturally Sweetened and Flavored Pre-Workout Supplement 467 peer-reviewed…A Legion Product Naturally Sweetened and Flavored Pre-Workout Supplement 467 peer-reviewed scientific studies support ingredients & doses Clinically effective doses of 6 lab-tested ingredients No added sugars or other unnecessary junk Third-party lab-tested for purity & accuracy
350 mg
$29.99
285 mg
$13.50
Tension Management • Promotes Relaxation • Healthy Vascular Function • Non-GMO • A Dietary…Tension Management • Promotes Relaxation • Healthy Vascular Function • Non-GMO • A Dietary Supplement • Vegetarian/Vegan • Amino Acids • Family Owned 1968 • GMP Quality Assured
285 mg
$22.03
A Magnum Nutraceuticals Product Pharmaceutical Grade Bed Time Burner Ignites thermogenesis…A Magnum Nutraceuticals Product Pharmaceutical Grade Bed Time Burner Ignites thermogenesis without stimulants Maximum absorption capsule technology Burns fat while you are sleeping soundly in bed Formulated to reduce food cravings and hunger
250 mg
$39.99
Nothing but l-theanine
Products where l-theanine is the only ingredient we found — useful if you are building a stack deliberately and don't want extras you didn't choose.
A Force Factor Product Prioritize Your Inner Peace Promotes calm & relaxation Extra strength…A Force Factor Product Prioritize Your Inner Peace Promotes calm & relaxation Extra strength formula 200mg l-theanine per capsule 60 servings per bottle
$6.99
200 mg per serving
L-theanine known for supporting a relaxed and calm mood, L-theanine is an amino acid naturally…L-theanine known for supporting a relaxed and calm mood, L-theanine is an amino acid naturally found in black and green tea leaves. Made from only the best ingredients, L-theanine provides you with 200 mg of this beneficial amino acid per serving.
$8.52
200 mcg per serving
$11.79
100 mg per serving
Promotes relaxation without drowsiness; Favorably affects dopamine and serotonin levels;…Promotes relaxation without drowsiness; Favorably affects dopamine and serotonin levels; Identical to the theanine found in green tea
$11.99
100 mg per serving
Covers the most in one bottle
These contain l-theanine plus the most other ingredients we found — fewer bottles if the rest of your stack overlaps.
An AllMax Nutrition Product Virimax Male Blend, Anti-Oxidants And 100% RDI Essential…An AllMax Nutrition Product Virimax Male Blend, Anti-Oxidants And 100% RDI Essential Nutrients! Only take 2 tablets, once a day Complete 6 blend complex Formulated specifically for men 30 Day supply
38 ingredients
$9.99
31 ingredients
$99.00
A GAT Sport Product Advanced Functional Training Pre 2.65g brain boost* 1.15g energy…A GAT Sport Product Advanced Functional Training Pre 2.65g brain boost* 1.15g energy blend* 10.7g strength fuel* 2027mg electrolyte matrix*
28 ingredients
$39.99
Helps healthy stress management; Supports calm focus; Multi-nutrient blend features St. John's…Helps healthy stress management; Supports calm focus; Multi-nutrient blend features St. John's Wort, GABA, L-Theanine and more
27 ingredients
$17.69
Usually combined with
What actually shares a bottle with l-theanine, counted across these 140 products.
Magnesium · 38Taurine · 23beta-alanine · 21Caffeine Anhydrous · 20Calcium · 17Melatonin · 16l-citrulline · 14Vitamin B6 (Pyridoxine HCl) · 13
Build a stack with l-theanine
Add the other ingredients you want and find the fewest bottles that cover them.
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