| $0.19 | 600 mg | $47.23 | 2× · 420 caps · 420 srv | Capsules | — | L-Theanine 200mg & Alpha GPC 600mg Bundle – 2 Pack Wellness Stack | Save 25% – Complete 2-Product Stack – 210 Capsules Total – Australian Owned & GMP Certified |
| $0.27 | 400 mg | $43.40 | 400 caps · 400 srv | Capsules | 4.6 (2.1K) | L-Theanine 400mg Capsules | 400 Count Max Size | Non-GMO & Gluten Free | by Horbaach |
| $0.37 | 1 g | $32.99 | 90 caps · 90 srv | Capsules | 4.3 (73) | 3in1 Gaba Supplements 750mg L-Theanine 200mg & 5-HTP (5-hydroxytryptophan) - 1000mg - 90 Capsules |
| $0.39 | 200 mg | $1,974.41 | 25 kg · 25,000 srv | Powder | — | BulkSupplements.com L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free - 200mg of L Theanine powder per Serving, 25kg (55 lbs) |
| $0.42 | 400 mg | $39.99 | 240 tabs · 240 srv | Tablets | 4.4 (182) | Vitamatic L-Theanine Supplement 400mg per Serving - 240 Tablets - Non-GMO, Gluten Free… |
| $0.62 | 400 mg | $29.90 | 120 caps · 120 srv | Capsules | 4.6 (1.9K) | L Theanine 400mg Capsules | 120 Count | Non-GMO & Gluten Free | by Horbaach |
| $0.63 | 200 mg | $46.05 | 365 caps · 365 srv | Capsules | 4.6 (26.3K) | L-Theanine 200mg Super Value Size - 365 Vegetarian Capsules |
| $0.64 | 200 mg | $51.00 | 400 caps · 400 srv | Capsules | 4.6 (636) | L Theanine 200mg | 400 Capsules | Value Size | Non-GMO, Gluten Free Supplement | by Horbaach |
| ~$0.65 | ~1.2 g | $47.00 | 60 caps · 60 srv | Capsules | 4.3 (424) | GABA with L-Theanine Supplement 1200mg - High Bioavailable Liposomal GABA Supplements, 60 Capsules for Adults by Genogna ,1 |
| ~$0.81 | ~200 mg | $38.99 | 240 caps · 240 srv | Capsules | 4.7 (3K) | Nutricost L-Theanine 240 Capules |
| $0.83 | 200 mg | $33.13 | 200 caps · 200 srv | Capsules | 4.5 (53) | Earthborn Elements L-Theanine 200 Capsules, Pure & Undiluted, No Additives |
| $0.83 | 400 mg | $19.99 | 400 caps · 60 srv | Capsules | 4.5 (2) | L-Theanine 400mg Capsules - 2 Month Supply |
| $0.87 | 200 mg | $20.99 | 120 caps · 120 srv | Capsules | — | L-Theanine 200mg | 120 Capsules | Premium Natural Stress Relief & Focus Supplement | Vegan, Non-GMO, Gluten Free |
| $0.92 | 300 mg | $33.10 | 120 caps · 120 srv | Capsules | 4 (7) | L-Theanine (98% Green Tea Extract) with Myo-Inositol 300 mg - 120 Vegan Capsules - 4 Month Supply - Supports Mental Clarity and Stress Management - Amino Acid Supplement - by Apollo's Hegemony |
| $0.97 | 200 mg | $23.26 | 120 caps · 120 srv | Capsules | 4.6 (26.3K) | L-Theanine 200mg by Nature's Trove - 120 Vegetarian Capsules |
| $1.00 | 400 mg | $23.99 | 60 gummies · 60 srv | Gummies | 4.2 (19) | L-Theanine Gummies | 400mg Per Serving | 60 Gummies | 7-in-1 Complex with Magnesium, Ashwagandha, Lemon Balm & Vitamin B6, Vegan, Sugar-Free, Lemon Flavour2 ingredientsTheanine—Magnesium— |
| $1.04 | 200 mg | $24.99 | 120 caps · 120 srv | Capsules | 4.5 (2) | L Theanine 200mg Capsules | 120 Count | Non-GMO & Gluten Free | by Rimo Nutrition |
| $1.04 | 400 mg | $24.99 | 60 gummies · 60 srv | Gummies | — | L-Theanine 400mg 60 Gummies - Premium Amino Acid - Focus, Clarity & Mind Balance Theanine – Clean, Vegan, Non-GMO Gummy – Dietary Supplement by MAYN |
| $1.08 | 200 mg | $26.00 | 120 tabs · 120 srv | Tablets | 4.3 (57) | L-Theanine 200 mg - 120 Vegan Tablets - 4 Months Supply - Amino Acid Supplement - by MZ |
| $1.24 | 100 mg | $34.58 | 28 g · 280 srv | Powder | 4.5 (148) | NOW Supplements, L-Theanine Pure Powder, 1-Ounce |
| $1.30 | 1 g | $25.99 | 200 g · 20 srv | Powder | 4.1 (31) | Powdered Drink Mix,Raspberry Lemonade Flavour,with L-Theanine,KSM-66 Ashwagandha,Magnesium Glycinate, Vitamin D3,Relaxation Supplement3 ingredientsTheanine—Vitamin D3—Magnesium— |
| $1.38 | 200 mg | $33.12 | 120 caps · 120 srv | Capsules | 4.5 (819) | L-Theanine 200mg — 120 Count (V-Capsules) / 120 Servings: Manufactured in a cGMP-Registered Facility in USA; Non-GMO, Vegan & Gluten Free |
| $1.40 | 200 mg | $33.57 | 120 caps · 120 srv | Capsules | 4.6 (67) | L-Theanine 200mg (120 Vegetarian Capsules) - No Stearates - Vegan - Non GMO - Gluten Free |
| $1.66 | 200 mg | $19.95 | 60 caps · 60 srv | Capsules | 4.3 (66) | Piping Rock L-Theanine 200mg Supplement | 60 Capsules | Double Strength | Non-GMO, Gluten Free |
| ~$1.66 | ~200 mg | $29.95 | 90 caps · 90 srv | Capsules | 4.5 (2) | GABA L-Theanine 5-HTP Complex | 90 Vegetable Capsules by GlowBelly |
| $1.67 | 200 mg | $19.99 | 60 caps · 60 srv | Capsules | 4 (12) | L-Theanine 200mg Capsules - Support Wellness - 60 Capsules - 2 Month Supply |
| ~$1.67 | ~200 mg | $19.99 | 1 kg · 60 srv | Capsules | 4.9 (12) | 7in1 L-Theanine Capsules with Zinc, Cooper, Manganese, L-tyrosine, Ashwagandha, Licorice Root – L-Theanine Supplement - 60 Capsules - 2 Month Supply2 ingredientsTheanine—Zinc— |
| $1.67 | 200 mg | $39.99 | 120 caps · 120 srv | Capsules | 4.4 (274) | Nutrawave L-Theanine 120 capsules |
| ~$1.67 | ~200 mg | $20.00 | 60 gummies · 60 srv | Gummies | 4.7 (25) | Sleep Gummies Supplements for Adult : GABA, L Theanine for Brain and Sleep Support, Melatonin-Free, Blueberry Flavor-60 Gummies |
| $1.80 | 250 mg | $26.99 | 60 caps · 60 srv | Capsules | — | L-Theanine 250mg Capsules, 60 Count, Relaxation Support Supplement, Caffeine-Free Amino Acid Formula, Vegetarian Capsule Shell |
| ~$1.86 | ~200 mg | $66.90 | 180 caps · 180 srv | Capsules | 4.3 (694) | Caffeine L-Theanine Capsules | 180 Pills | Contains 100mg of Caffeine and 200mg of L-Theanine | Nootropic Brain Booster | Energy Supplement | Increase Mental Focus + Alertness | Tea Alternative |
| $1.92 | 200 mg | $38.49 | 100 g · 100 srv | Powder | 4.5 (3K) | BulkSupplements.com L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free, 200mg per Serving, 100g (3.5 oz) (Pack of 1) |
| ~$2.00 | ~200 mg | $23.99 | 60 gummies · 60 srv | Gummies | 3.9 (27) | Sleep Gummies | Night-Time Relaxation Support | 60 Gummies | Calming Blend with L-Theanine, 5-HTP, Lemon Balm, Passionflower, Valerian & Magnesium2 ingredientsTheanine—Magnesium— |
| ~$2.25 | ~200 mg | $13.50 | 30 caps · 30 srv | Capsules | 4.5 (66) | L-Theanine Plus by Vitaceuticals | Supports Mental Clarity, Relaxation & Stress Relief | Australian Made | 30 Capsules |
| ~$2.35 | ~200 mg | $22.57 | 48 gummies · 48 srv | Gummies | 4.4 (1.2K) | Stress Away Gummies | 48 count | with Gaba and L Theanine | Non GMO, Gluten Free Stress Relief Supplement | Lemon Strawberry Flavor | by Nature's Truth |
| $2.44 | 200 mg | $29.28 | 60 caps · 60 srv | Capsules | 4 (4) | Advance Physicians Formula Inc. L-Theanine 200 mg 60 Capsules |
| ~$2.50 | ~200 mg | $29.95 | 60 caps · 60 srv | Capsules | 4.7 (8) | Phosphatidylserine Supplement with Rhodiola Rosea, Gingko Biloba, Rosemary, and L-Theanine- 60 Capsules for 2 Month Supply |
| $2.50 | 200 mg | $29.99 | 120 tabs · 60 srv | Tablets | 4.4 (563) | Best Naturals L-Theanine 200mg per Tablet (400mg per 2 Tablets) - Promotes Relaxation Without Drowsiness - 120 Vegetarian Tablets - (120 Count (Pack of 1)) |
| $2.50 | 200 mg | $30.03 | 60 caps · 60 srv | Capsules | — | Nutralife - L-Theanine 200 mg. - 60 Capsules |
| ~$2.75 | ~200 mg | $32.99 | 60 gummies · 60 srv | Gummies | 3.5 (7) | Natural Sleep Happy Birthday Cake Sleep Gummies Supplements for Adult GABA,L Theanine for Brain and Sleep Support,Melatonin-Free,Blueberry Flavor 60 Gummies |
| ~$2.77 | ~100 mg | $33.20 | 120 gummies · 120 srv | Gummies | 4.2 (1K) | Stress Relief Gummies | 120 Count | with GABA and L Theanine | Non-GMO, Gluten Free Supplement | Strawberry Lemon Flavor | by Carlyle |
| ~$2.92 | ~200 mg | $34.98 | 60 caps · 60 srv | Capsules | 4.4 (17) | 5-HTP & GABA Supplements - 4in1 with Vitamin B6, L-Theanine - Relaxation Support - 60 Vegan & Non-GMO Capsules |
| ~$2.92 | ~200 mg | $34.99 | 60 gummies · 60 srv | Gummies | — | Saffron Gummies with L-Theanine, GABA, Ashwagandha & Turmeric | Pineapple Flavour | 60 Gummies | Sugar Free, Non-GMO, Gelatin Free | Dietary Supplement |
| $3.05 | 100 mg | $30.50 | 10× · 100 g · 100 srv | Powder | 4.6 (702) | Bloom Nutrition Energy Drink Powder Packets, Raspberry Lemonade, 10 Count | Sugar Free Drink Mix with L-Theanine, B Vitamins & Natural Caffeine, On the Go Powder Sticks for Natural Energy, 10 Calories |
| $3.17 | 200 mg | $18.99 | 30 caps · 30 srv | Capsules | 4 (3) | Nature’s Own Stress Relief & Calm containing Alphawave L‑Theanine 200mg, Magnesium & B Vitamins 30 Capsules- Relieves Stress & Fatigue -Supports Focus, Clarity & Energy -One‑A‑Day Formula2 ingredientsTheanine—Magnesium— |
| $3.25 | 200 mg | $32.46 | 50 gummies · 50 srv | Gummies | 4.5 (2K) | Nature Made Chewable L Theanine 200mg, L-Theanine Supplement for Stress Relief, 50 Chewable Tablets, 50 Day Supply |
| $3.34 | 200 mg | $80.11 | 120 caps · 120 srv | Capsules | 4.7 (191) | SOURCE NATURALS Serene Science L-Theanine 200 Mg Capsule, 120 Count |
| $3.41 | 200 mg | $40.96 | 60 caps · 60 srv | Capsules | 4.6 (104) | Protocol For Life Balance - L-Theanine 200 mg - Relaxed but Alert Mental State and Cognitive Support to Promote Calm and Aware Brain Function - 60 Veg Capsules |
| $3.56 | 100 mg | $63.99 | 180 caps · 180 srv | Capsules | 4.6 (294) | Enzymatic Therapy L-Theanine Suntheanine® Brand Patented Amino Acid 100 mg Potency, 180 VCaps |
| $3.57 | 200 mg | $85.76 | 120 caps · 120 srv | Capsules | 4.6 (84) | Metabolic Maintenance L-Theanine - 200 Milligrams Suntheanine, Relaxation + Focus Support (120 Capsules) |
| $3.62 | 100 mg | $32.59 | 90 caps · 90 srv | Capsules | 4.5 (2.7K) | NOW L-theanine, 100 Mg, 90 Capsules |
| $3.70 | 200 mg | $44.37 | 60 caps · 60 srv | Capsules | 4.3 (694) | Caffeine and L-Theanine Capsules | 60 Pills | Contains 100mg of Caffeine and 200mg of L-Theanine | Natural Nootropic Supplement | Energy Booster | Mental Focus + Alertness | Coffee Alternative |
| $3.73 | 250 mg | $55.99 | 60 caps · 60 srv | Capsules | 4.3 (79) | Natural L theanine Relaxation Aid | 250mg L-theanine Gaba Alternative (60) | 99% ltheanine, 1-a-day, Relaxation without sedation, GABA support, fast acting, 250mg l theanine powder per capsule |
| $3.88 | 100 mg | $34.90 | 90 caps · 90 srv | Capsules | 4.4 (53) | NOW FOODS Theanine 100mg, 90 CT |
| $4.48 | 150 mg | $40.31 | 60 caps · 60 srv | Capsules | 4.7 (211) | Bluebonnet Nutrition L-Theanine 150 mg 60 VCaps |
| $4.76 | 125 mg | $35.73 | 60 caps · 60 srv | Capsules | 4.6 (385) | Natural Factors Stress-Relax Suntheanine L-Theanine 125 mg 60 Vegetarian Capsules |
| $4.83 | 200 mg | $29.00 | 30 gummies · 30 srv | Gummies | 4.4 (255) | Solaray L-Theanine Chewable Supplement, 200 mg, 30 Count |
| $5.00 | 100 mg | $24.99 | 50 caps · 50 srv | Capsules | 4.5 (33) | Swisse Ultiboost L-Theanine Calm Mind 50 Capsules |
| ~$5.83 | ~100 mg | $34.99 | 60 gummies · 60 srv | Gummies | 4 (87) | Vitamatic Stress Relief Gummies with GABA, L-Theanine, Lemon Balm – Lemon & Mixed Berry Flavor – 60 Gummies – Vegan, Non-GMO, Gluten-Free |
| $5.96 | 200 mg | $35.73 | 15 g · 30 srv | Liquid | 4.6 (1.3K) | MaryRuth's L Theanine 200mg Liquid Drops | L-Theanine + Organic Glycerin | Stress Relief for Adults & Kids | Focus Supplement | Natural Sleep Support | Vegan | Non-GMO | Gluten Free | 30 Servings |
| ~$6.17 | ~200 mg | $24.69 | 20 caps · 20 srv | Powder | 4.1 (114) | Powdered Drink Mix, Raspberry Lemonade, L Theanine,Ksm-66 Ashwagandha,Magnesium Glycinate, Vitamin D 3,Supplements for Relaxation & Focus,No Sugar,Non GMO,On The Go, 20 Ct2 ingredientsTheanine—Magnesium— |
| $6.55 | 200 mg | $117.95 | 90 caps · 90 srv | Capsules | 4.7 (800) | Thorne Research - Theanine - 90 Capsules |
| ~$8.09 | ~100 mg | $48.52 | 60 caps · 60 srv | Capsules | 4.3 (112) | Caffeine and L-Theanine Capsules | 60 Count | Contains 200mg of Caffeine and 100mg of L-Theanine | Natural Nootropic Supplement | Energy Booster | Mental Focus + Alertness | Coffee Alternative |
| ~$8.96 | ~100 mg | $35.84 | 40 gummies · 40 srv | Gummies | 4.3 (2.7K) | Nature Made Wellblends Stress Relief Gummies, L-theanine to help reduce stress, with GABA, Same Day Stress Support, 40 Strawberry Flavor Gummies |
| $9.57 | 200 mg | $114.86 | 60 caps · 60 srv | Capsules | 4.4 (112) | L-Theanine 200mg with Patented and Clinically Studied Suntheanine (60 Vegetarian Capsules) No Stearates - No Flow Agents |
| ~$9.95 | ~200 mg | $39.80 | 20 caps · 20 srv | Powder | — | Minoa Caffeine Pouch – Fresh Mint – 200mg Natural Caffeine with Tyrosine, L-Theanine, Coenzyme Q10 – Bold Energy for Focus & Vibe – 1-Pack (20 Pouches) 2 boxes |
| $13.43 | 60 mg | $145.01 | 180 gummies · 180 srv | Gummies | 4 (64) | Neuro Gum | Nootropic Energy Caffeine Gum | 40mg Caffeine + 60mg L-theanine + B Vitamins for Energy and Focus | Sugar Free+Vegan+Keto | Caffeine Supplement for Adults Cinnamon Flavor 180 Count BulkBag |
| $15.37 | 100 mg | $92.19 | 1 kg · 60 srv | Powder | 4.6 (263) | Momentous Huberman Stack, L-Theanine, 60 Servings |
| $19.90 | 50 mg | $39.80 | 2× · 40 caps · 40 srv | Powder | — | Minoa Caffeine Pouch – Peach – 50mg Natural Caffeine with Tyrosine, L-Theanine, Coenzyme Q10 – Bold Grape Energy for Focus & Vibe – 1-box (20 Pouches) *2 Box |
| ~$20.42 | ~60 mg | $49.00 | 2× · 40 caps · 40 srv | Powder | — | Minoa Caffeine Pouch – Arabica – 60mg Natural Caffeine with Tyrosine, L-Theanine, Coenzyme Q10 – Bold Grape Energy for Focus & Vibe – 1-box (20 Pouches) 2 Boxes |
| $40.83 | 60 mg | $49.00 | 20 caps · 20 srv | Powder | — | Minoa Caffeine Pouch – Robusta Bean – 60mg Natural Caffeine with Tyrosine, L-Theanine, Coenzyme Q10 – Bold Grape Energy for Focus & Vibe – 1-Pack (20 Pouches) 2 Boxes |
| $84.70 | 200 mg | $423.49 | 5 kg · 25 srv | Powder | 5 (1) | BulkSupplements.com L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free - 200mg of L Theanine powder per Serving, 5kg (11 lbs) |
| $125.14 | 200 mg | $62.57 | 500 g · 3 srv | Powder | 4.5 (3K) | BulkSupplements.com L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free, 200mg per Serving, 500g (1.1 lbs) (Pack of 1) |
| $180.56 | 200 mg | $45.14 | 250 g · 1 srv | Powder | 4.5 (3K) | 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) |
| $240.00 | 200 mg | $48.00 | 90 g · 1 srv | Liquid | — | Tonic Alchemy Daily Functional Energy Shot, Mango Flavor, 60mg Clean Caffeine, 200mg L-Theanine, Supports Energy and Focus, 3 fl oz Bottle |
| — | ~200 mg | $46.90 | — | Capsules | 4.2 (4K) | Caffeine with L-Theanine for Smooth Energy & Focus - Focused Energy for Your Mind & Body - No Crash ▫ No Jitters - #1 Nootropic Stack for Cognitive Performance - Veggie Capsules |
| — | 60 mg | $56.49 | — | Gummies | 4.3 (1.2K) | NeuroGum Neuro Mints Nootropic Energy Caffeine | 40mg + 60mg L-theanine B Vitamins for and Focus Sugar Free Vegan Keto Supplement Adults Mint 90 Bulk Bag |
| — | ~200 mg | $74.99 | — | Capsules | 5 (2) | Neuro Energy Caffeine Gum (54 Pieces) - Sugar Free with L-theanine + Natural Caffeine + Vitamin B12 & B6 - Nootropic Energy & Focus Supplement for Women & Men - Keto & Vegan, Spearmint Flavor2 ingredientsTheanine—Vitamin B12— |
| — | ~200 mg | $23.99 | — | Gummies | 4.3 (32) | Easy Sleep Gummies with L-Theanine & Ashwagandha Root Extract (Melatonin Free) Supplement | Gluten-Free | Non-Habit Forming |
| — | ~200 mg | $28.99 | — | Capsules | 4.1 (30) | L-Theanine 200mg for Stress Relief & Mental Clarity | Green Tea Amino Acid, Supports Focus, Relaxation & Mind Balance | Vegan, Non-GMO |
| — | 200 mg | $27.67 | 60 g | Liquid | 4.3 (410) | High Absorption L-Theanine Liquid Drops - Nootropic Focus Supplement with L Theanine 200mg Per Serving and Chamomile Extract - L Theanine Supplement for Adults and Kids Relaxation and Focus - 2oz |
| — | ~200 mg | $67.50 | 150 g | Powder | 4.8 (5) | Healthwise L-Theanine 150g Powder |
| — | ~200 mg | $37.99 | 60 g | Powder | 5 (4) | Healthwise L-Theanine 60g Powder |
| — | ~200 mg | $52.37 | 25 g | Powder | 4.6 (1K) | L-Theanine Powder - 100% Pure, Non-GMO, Gluten Free (Multiple Sizes) Mood and Cognitive Supplement, Stress Relief Relaxation, Scoop Included Fit Powders (25 Grams),1 |
| — | ~200 mg | $33.36 | 100 g | Powder | 4.6 (746) | Pure L-Theanine Powder, 100 Grams, Supports Stress, Anxiety Relief and Promotes Mood Balancing and Sleep, No GMOs and No Gluten. |
| — | ~200 mg | $36.04 | — | Liquid | 4.2 (4) | 10in1 GABA L-Theanine Supplement Liquid Drops with 5-HTP, Ashwagandha, Magnesium Glycinate, Passion Flower, L-Glycine, Black Pepper and More - 30ml 1 Fl Oz2 ingredientsTheanine—Magnesium— |
| — | ~200 mg | $35.00 | — | Capsules | 3.3 (150) | The Patch Remedy Happy Patch | 5‑HTP, L‑Theanine, Rhodiola, Inositol, Vitamin B6 & D3 | 30 Patches2 ingredientsTheanine—Vitamin D3— |
| — | ~— | $19.99 | 1 kg · 60 srv | Capsules | 4.5 (2) | 7in1 L-Theanine Capsules with Zinc, Cooper, Manganese, L-tyrosine, Ashwagandha, Licorice Root – L-Theanine Supplement - 2 Month Supply2 ingredientsTheanine—Zinc— |
| — | ~200 mg | $52.13 | — | Gummies | — | Natural Sleep Gummies - Nighttime, Stay Asleep All Night, Wake up Clear | 5-HTP, L-Theanine, Magnesium & Valerian Root - Melatonin Free - Vegan，Promote Calm Mind & Fall Asleep Faster2 ingredientsTheanine—Magnesium— |
| — | ~200 mg | $4.39 | — | Capsules | — | Mon expérience L-théanine: Guide ultime Anti-Stress, Sommeil et Migraines (Résultats en 3 semaines) (French Edition) |
| — | ~200 mg | $35.00 | — | Capsules | 4 (6) | The Patch Remedy Relax Patch | L-Theanine, Lemon Balm, Valerian, Ashwagandha, Passionflower | 30 Patches |
| — | 200 mg | $95.04 | 1 kg | Powder | 4.5 (3K) | BulkSupplements.com L-Theanine Powder - L-Theanine Supplement, Amino Amino Supplement - Pure & Gluten Free, 200mg per Serving, 1kg (2.2 lbs) (Pack of 1) |