| $0.50 | 200 mg | $11.95 | 120 caps · 120 srv | Capsules | 4.6 (10.3K) | Nutricost L-Theanine 200mg, 120 Capsules, Double Strength, Gluten Free | GMO-Free |
| $0.50 | 200 mg | $35.85 | 3× · 360 caps · 360 srv | Capsules | 4.6 (10.3K) | Nutricost L-Theanine 200mg, 120 Capsules, Double Strength, Gluten Free (Pack of 3) |
| $0.48 | 800 mg | $22.99 | 60 caps · 60 srv | Softgels | 4.5 (368) | Vivaravida L-Theanine 800mg Supplement with GABA and Magnesium Glycinate - Natural Compound, Sleep and Relaxation (60 Softgels)2 ingredientsTheanine—Magnesium— |
| $0.47 | 200 mg | $16.99 | 360 caps · 180 srv | Softgels | 4.4 (63) | L-Theanine with Magnesium Glycinate, 360 Softgels | L-Theanine 200mg & Magnesium Glycinate 200mg per Serving | 2-in-1 Amino Acid & Mineral Complex | Made with Coconut Oil | Non-GMO, cGMP Manufactured2 ingredientsTheanine—Magnesium— |
| $0.42 | 200 mg | $29.99 | 3× · 1,080 caps · 360 srv | Capsules | 4.4 (359) | Purisure Caffeine Theanine Capsules Pills 100mg Caffeine + 200mg L Theanine for Pre Workout Energy, and Clarity Energy Pills for Fatigue, Nootropic Supplement, 120 Day Supply, Pack of 3 |
| $0.42 | 200 mg | $9.99 | 120 tabs · 120 srv | Tablets | 4.5 (451) | Vitamatic L-Theanine 200 mg with Caffeine 100 mg, 120 Tablets | Promote Calm Focus and Balance Energy*, Non-GMO, Gluten Free, Made in USA |
| $0.42 | 200 mg | $9.99 | 120 tabs · 120 srv | Tablets | 4.6 (596) | Best Naturals L-Theanine 200mg per Tablet (400mg per 2 Tablets) - Promotes Relaxation Without Drowsiness - 120 Vegetarian Tablets - (120 Count (Pack of 1)) |
| $0.42 | 200 mg | $9.99 | 120 caps · 120 srv | Capsules | 4.4 (60) | L-Theanine 200mg, L Theanine Supplement 120 Vegan Capsules | L-Theanine 200mg, Amino Acid Supplement,Support Relaxation,Sleep Support,L Theanine Capsules,Non-GMO,Gluten Free |
| $0.42 | 200 mg | $9.98 | 120 caps · 120 srv | Capsules | 4.6 (27.5K) | Nature's Trove L-Theanine 200mg 120 Vegetarian Capsules |
| $0.42 | 200 mg | $9.97 | 120 caps · 120 srv | Capsules | 4.6 (2.1K) | Bronson L-Theanine 200 mg with Passion Flower, Stress Support, 120 Capsules | Promotes Relaxation Without Drowsiness, Supports Healthy Mood, Non-GMO, Gluten-Free & Soy-Free |
| $0.41 | 400 mg | $9.89 | 120 caps · 60 srv | Capsules | 4.6 (4.1K) | Horbäach L-Theanine Supplement | 400mg | 120 Powder Capsules | Non-GMO & Gluten Free |
| $0.40 | 200 mg | $18.99 | 2× · 240 tabs · 240 srv | Tablets | 4.5 (451) | Vitamatic L-Theanine 200 mg with Caffeine 100 mg, 120 Tablets - 2 Pack | Promote Calm Focus and Balance Energy*, Non-GMO, Gluten Free, Made in USA |
| $0.37 | 200 mg | $8.99 | 120 caps · 120 srv | Capsules | 4.6 (266) | Carlyle L-Theanine 200mg Supplement | 120 Capsules | Non-GMO, Gluten Free |
| ~$0.37 | ~200 mg | $17.95 | 240 caps · 240 srv | Capsules | 4.7 (3K) | Nutricost L-Theanine 200mg, 240 Capsules - Double Strength |
| $0.37 | 200 mg | $27.15 | 365 caps · 365 srv | Capsules | 4.6 (27.5K) | Nature's Trove L-Theanine 200mg Super Value Size - 365 Vegetarian Capsules |
| $0.31 | 400 mg | $24.99 | 400 caps · 200 srv | Softgels | 4.7 (325) | Micro Ingredients L-Theanine 400mg, 400 Softgels | Highly Bioavailable with Coconut Oil | Extra Strength Theanine Amino Acid | Calm & Relaxation Support + Focus Supplement | Non-GMO, Gluten Free |
| $0.28 | 200 mg | $19.97 | 360 caps · 360 srv | Capsules | 4.6 (2.1K) | Bronson L-Theanine 200 mg with Passion Flower, Stress Support, 360 Capsules | Promotes Relaxation Without Drowsiness, Supports Healthy Mood, Non-GMO, Gluten-Free & Soy-Free |
| $0.27 | 200 mg | $19.97 | 365 caps · 365 srv | Capsules | 4.7 (980) | BulkSupplements.com L-Theanine Capsules - L-Theanine Supplement, L-Theanine 200mg, Theanine Pills - Amino Amino Supplement, Gluten Free - 1 Theanine Capsule per Serving, 365 Capsules |
| $0.25 | 200 mg | $19.99 | 400 caps · 400 srv | Capsules | 4.8 (668) | Horbäach L Theanine | 200mg | 400 Capsules | Value Size | Non-GMO, Gluten Free Supplement |
| $0.24 | 400 mg | $18.99 | 400 caps · 200 srv | Capsules | 4.7 (467) | Extra Strength L-Theanine Supplement 400mg, 400 Capsules (200mg Per Cap) | Amino Acids for Focus & Relaxation Support*, Non-GMO & Gluten Free |
| ~$0.23 | ~200 mg | $36.59 | 2× · 800 gummies · 800 srv | Gummies | 4.3 (185) | Liposomal L-Theanine 200mg Magnesium Glycinate 400mg Gummies with GABA, 5HTP, Apigenin, Vitamin B6 & D3, Ashwagandha, Lemon Balm Leaf, Melatonin Free Sleep Chewable for Relax Mood & Muscle, 2 Packs3 ingredientsTheanine—Vitamin D3—Magnesium— |
| $0.16 | 200 mg | $15.95 | 100 g · 500 srv | Powder | 4.6 (1.3K) | Nutricost L-Theanine Powder 100 Grams - Gluten Free & Non-GMO |
| $0.12 | 400 mg | $19.99 | 400 caps · 400 srv | Capsules | 4.6 (602) | NatureBell L-Theanine Supplement - 400 Capsules - 400mg Max Potency Amino Acid Support - for Relaxation, Calm, and Focus - Non-Drowsy Free-Form Formula* |
| $0.092 | 200 mg | $22.97 | 250 g · 1,250 srv | Powder | 4.6 (3.4K) | BulkSupplements.com L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free, 200mg per Serving, 250g (8.8 oz) (Pack of 1) |
| $0.056 | 1 g | $27.99 | 100 g · 500 srv | Powder | 4.6 (141) | Pure L-Theanine Powder 100% [100gm-500 Servings] Natural L-Theanine Supplement - Only 1 Ingredient, Free of Sugar,Soy, Filler, Melatonin, Non-GMO, Vegan |
| — | 200 mg | $13.95 | — | Capsules | 4.2 (122) | Health Thru Nutrition L-Theanine 200mg 60 Vegecaps PhytoSure Certified | Supports Healthy Relaxation & Focus | 3rd Party Tested | Clean Label, Non-GMO, Gluten & Soy Free, Hypoallergenic |
| — | 200 mg | $29.95 | — | Capsules | 4.4 (2.6K) | Clean Nutraceuticals GABA 750mg 5 HTP 200mg L Tryptophan 500mg L Theanine 200mg Ashwagandha SAM-e L-Glycine - Mood Support Vitamins for Women and Men with L-Tyrosine 5-HTP (5-Hydroxytryptophan) |
| — | 100 mg | $29.99 | — | Gummies | 3.6 (99) | Energy & Focus Gummies | 100mg Natural Caffeine + L-Theanine + Vitamin B6 & B12 + CoQ10 | Nootropic Cognitive Brain Performance Supplement | No Crash or Jitters2 ingredientsTheanine—Vitamin B12— |
| — | ~200 mg | $24.95 | — | Gummies | 4.3 (160) | AuraZen Mood Support Saffron Gummies L-Theanine Ashwagandha Rhodiola St John's Wort Lions Mane GABA Vitamin D Magnesium Supplement | Calm Vegan Plant-Based Herbal Gummy By Clean Nutra2 ingredientsTheanine—Magnesium— |