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Sports Research Double Strength L-Theanine Supplement - Suntheanine Softgels for Focus, Relaxation & Alertness - Non-Drowsy Support Made with Coconut Oil, Non-GMO & Gluten Free - 200mg, 60 Count
Sports Research Double Strength L-Theanine Supplement - Suntheanine Softgels for Focus, Relaxation & Alertness - Non-Drowsy Support Made with Coconut Oil, Non-GMO & Gluten Free - 200mg, 60 Count
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Sports Research L-Theanine
Experience an improved state of relaxation and focus without drowsiness. Just one daily softgel helps promote an increase in Alpha brain waves, thanks to the clinically researched Suntheanine.*

Made with Suntheanine
Suntheanine is produced via a patented enzymatic fermentation process that mimics the natural enzymatic process of L-theanine production in tea, resulting in a nearly 100% pure L-isomer-theanine.
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Premium Experience
We strive to deliver exceptional quality, including our ingredients. This daily formula is encapsulated in a daily liquid softgel, free of artificial fillers or colors.
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Unparalleled Quality
You can rest assured that you’re consuming an L-theanine supplement that is gluten-free, non-GMO, third-party tested, and held to superior quality standards.


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Customer Reviews
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4.6 out of 5 stars 36,702
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4.6 out of 5 stars 1,078
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4.7 out of 5 stars 46,731
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4.7 out of 5 stars 51,526
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Price
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$26.95$26.95 | $29.95$29.95 | $23.95$23.95 | $27.95$27.95 | $22.95$22.95 | $19.95$19.95 | $23.95$23.95 |
What's it for?
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Brain & Body Fuel* | Memory & Cognition* | Bone & Immune Health* | Brain & Heart Health* | Rehydration | Skin Hydration* | Bone & Immune Health* |
What's inside?
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Organic MCT Oil from Coconut | Magnesium L-threonate | Vit. D3 & K2, Coconut MCT Oil | Wild Alaska Pollock Fish Oil | 400mg Sodium, 200mg Potassium | Plant-Based Ceramides | Vit. D3 & K2, Coconut MCT Oil |
Product form
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Liquid Oil | Veggie-Capsule | Veggie-Softgel | Fish-Softgel | Powder | Liquid Softgel | Veggie-Softgel |
Diet Type
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Keto, Vegan, Low-Carb | Vegan, Gluten & Dairy Free | Plant-Based, Vegan,Gluten-Free | Pescatarian, Keto, Gluten-Free | Vegan, Low-Carb | Gluten & Soy Free | Plant-Based, Vegan,Gluten-Free |
Non-GMO, Soy & Gluten-free
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✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
Manufactured in cGMP facility
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✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
- ALERT & CALM: L-Theanine, commonly found in the flavonoid herbal green tea, is used as an ayurvedic substitute for those who want the antioxidant benefits of green tea but without caffeine. Encapsulated in a once-daily liquid softgel, our L-Theanine supports feelings of relaxation, calm, focus, and alertness*
- DOUBLE THE SUPPORT: To optimize your potential and give the utmost support, our L-theanine 200 mg amino acid softgels provide double the amount of L-theanine green tea extract commonly found in energy supplements in a convenient max-strength formula
- PATENTED SUNTHEANINE: Formulated with patented and clinically researched Suntheanine—you get all of the alertness and relaxation (+ the increase in alpha brain waves) without the jitters or crash of caffeine, energy pills, or energy drinks*
- PREMIUM INGREDIENTS: We hold all of our supplements to a higher standard. Rest assured that your L-Theanine is crafted using 100% organic coconut oil and an entirely non-GMO verified, gluten-free and soy-free product. Manufactured in the USA in cGMP-compliant facilities
- THE SPORTS RESEARCH DIFFERENCE: Founded in Southern California in 1980, Sports Research is a family-owned business born from a passion for fitness and wellness. Our goal is to embrace the sport of life through research-backed products created for every body—inside and out
Brand | SPORTS RESEARCH |
Flavor | Unflavored |
Primary Supplement Type | L-Theanine (Suntheanine(R)) |
Unit Count | 60 Count |
Item Form | Softgel |
Item Weight | 3.2 ounces |
Item dimensions L x W x H | 2.13 x 2.13 x 4 inches |
Diet Type | Gluten Free |
Product Benefits | Brain Health Support |
Age Range (Description) | Adult |
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