Sports Research® Double Strength L-Theanine 200mg, Organic Coconut Oil, Supplement for Focus, Relaxation & Alertness, Non-GMO, Gluten Free, 120 Count
Sports Research® Double Strength L-Theanine 200mg, Organic Coconut Oil, Supplement for Focus, Relaxation & Alertness, Non-GMO, Gluten Free, 120 Count
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Sports Research® Double Strength L-Theanine 200mg, Organic Coconut Oil, Supplement for Focus, Relaxation & Alertness, Non-GMO, Gluten Free, 120 Count

Sports Research® Double Strength L-Theanine 200mg, Organic Coconut Oil, Supplement for Focus, Relaxation & Alertness, Non-GMO, Gluten Free, 120 CountSports Research L Theanine Double Strength 200 mg 120 SoftgelsSports Research Double Strength L Theanine 200mg Coconut Oil Natural Nootropic
Size:120 ct

Key item features

  • 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
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4.784073506891271 stars out of 5, based on 653 seller reviews(4.8)
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Customer ratings & reviews

4.8 out of 5 stars
stars485 ratings445 reviews
How item rating is calculated
  1. 5 stars85% (411)
  2. 4 stars9% (42)
  3. 3 stars4% (20)
  4. 2 stars2% (9)
  5. 1 star1% (3)
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Showing 1-3 of 445 reviews

Jun 1, 2026
Michelle
Item details
Size: 60 ct
Sold bySports ResearchDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Sport Research Quality Manufactured in the USA!

I was hesitant to take L-Theanine as I can react so severely to "inert" ingredients until I found the Sport Research brand. I have to say when I took my first few doses shortly following an evening meal, it was so relaxing, I feel asleep early, which never happens (I struggle with lack of sleep). I have not taken a dose in the morning or mid-day to determine the difference in my overall focus or thought processes but feeling calm and relaxed has been great! I love to see a product clearly stating on the packaging that their product is manufactured in the United States - thank you Sport Research!

Helpful?29V5BFF8Q2AG5435356971
Sep 3, 2025
ERIC A.
5 out of 5 stars review

Seller Verified Purchase

Top-shelf supplement & company

I've been using SR L-Theanine for a few years on and off. I recently got my fiancée to use it too. It really helps reduce the stress and mind racing when you have a lot going on. It also helps with immune function directly and indirectly by reducing stress. I like the high quality of SR supplements. I used to buy them on Amazon but Amazon has gotten crazy with fake products so now I order directly from SR, just takes a little longer to get. Also, the support team is nice too.

Review from https://sportsresearch.com
Helpful?29V5BFF8Q2AG5435356971
Oct 20, 2025
Christina P.
5 out of 5 stars review

Seller Verified Purchase

I been taking L- Theanine by sport research for year now. I love this supplement because I have anxiety. I take one everyday at night, when I feel like I'm having anxiety attack I take 2-3 supplements to calm myself. Boy, it helps me so much! 30 mins it's working and I have a sense of calm . I have tried other brands but sport research is the only one that really helps me. If you have anxiety and stress, I recommend this. I like taking it with magnesium at night. It works!!

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Review from http://sportsresearch.com
Helpful?29V5BFF8Q2AG5435356971