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
$0.33/serving
Price verified Apr 22, 2026
Not evaluated by the FDA · Individual results may vary · Consult a healthcare provider before use
Our verdict
200mg Suntheanine per softgel of Suntheanine L-Theanine in Coconut Oil per softgel (with coconut oil) from Sports Research. Best for stacking with caffeine for focused energy.
Why we recommend this
Suntheanine in a coconut oil softgel for enhanced absorption. Non-GMO Project Verified. The softgel format is ideal for stacking with coffee — the combination of L-theanine + caffeine is one of the most well-studied nootropic stacks, providing focused energy without jitters.
Check for interactions
Already taking other supplements or prescription medications? Add them below to check for documented interactions, severity, and clinical guidance.
Our database currently documents 137+ supplement and drug-category interaction pairs. Combinations not flagged here may still interact — always consult your healthcare provider before combining supplements, especially with prescription medications.
What to watch out for
Softgels contain gelatin (not vegan). Coconut oil adds calories. Slightly more expensive than capsule alternatives.
Dose & form
- Serving
- 200mg Suntheanine per softgel
- Form
- Softgel (with coconut oil)
- Clinical range
- 100-200 mg daily
- Dose adequacy
- Therapeutic
- Supply
- 60 servings · $0.33/serving
- UPC
- 023249010173
Who it's best for
Stacking with caffeine for focused energy
Who should skip it
Vegans or those who need to avoid gelatin-based softgels
Pros
- Suntheanine in coconut oil softgel
- Enhanced absorption
- Non-GMO Project Verified
- Ideal for caffeine stacking
Cons
- Gelatin softgel (not vegan)
- Slightly higher price ($0.18/serving)
- Coconut oil adds minor calories
What customers say
4.5★ across 14,982 Amazon reviews. The most common questions from shoppers: re any potential interactions with medications, re any side effects from long-term use, and cause any digestive issues or side effects. Full answers in the FAQ below.
Frequently Asked Questions
What is the clinical dose for Suntheanine L-Theanine in Coconut Oil?
What is the clinical dose for Suntheanine L-Theanine in Coconut Oil?
Clinical trials typically use 100-200 mg daily. Sports Research Suntheanine L-Theanine 200mg delivers 200mg Suntheanine per softgel, which we classify as Therapeutic relative to that range.
How does Sports Research Suntheanine L-Theanine 200mg compare to similar Softgel (with coconut oil)?
How does Sports Research Suntheanine L-Theanine 200mg compare to similar Softgel (with coconut oil)?
See the "Also consider" section below for two alternatives. Choose based on form preference (Softgel (with coconut oil) vs alternatives), dose adequacy, and third-party testing.
Is Sports Research Suntheanine L-Theanine 200mg third-party tested?
Is Sports Research Suntheanine L-Theanine 200mg third-party tested?
Yes — Third-Party Tested, Non-GMO Project Verified. Third-party testing verifies ingredient identity and label accuracy.
Does this work with Amazon Subscribe & Save?
Does this work with Amazon Subscribe & Save?
Yes — Amazon Subscribe & Save is available for this product. Enrolling locks in a recurring delivery at a reduced per-unit price.
Are there any potential interactions with medications?
Are there any potential interactions with medications?
Sports Research Suntheanine L-Theanine may enhance sedative medications and blood pressure drugs. The 200mg Suntheanine in coconut oil softgel promotes relaxation. Consult your doctor if taking CNS-active medications, sleep aids, or blood pressure medications.
Are there any side effects from long-term use?
Are there any side effects from long-term use?
L-theanine has an excellent long-term safety profile with no tolerance or dependency. The Suntheanine form has been used in clinical trials for years. The coconut oil carrier adds minimal calories and is well-tolerated. Safe for daily long-term use.
Does it cause any digestive issues or side effects?
Does it cause any digestive issues or side effects?
Very well-tolerated. The coconut oil softgel may actually improve absorption and digestive comfort. L-theanine rarely causes any GI issues. The softgel format eliminates any taste concerns. Side effects are extremely rare at the standard 200mg dose.
Can it be taken with other supplements or vitamins?
Can it be taken with other supplements or vitamins?
Ideal for stacking with caffeine — this is one of the most well-studied nootropic combinations. Also pairs well with omega-3s, magnesium, and other cognitive supplements. The coconut oil carrier may enhance absorption of fat-soluble co-supplements.
Are there any specific instructions for taking it safely?
Are there any specific instructions for taking it safely?
Take 1 softgel daily with or without food. For focus enhancement, take with morning coffee. For relaxation, take any time. For sleep support, take 1-2 softgels 30-60 minutes before bed. The softgel is easy to incorporate into any supplement routine.
How long until benefits are typically experienced?
How long until benefits are typically experienced?
L-theanine effects are felt within 30-60 minutes. The coconut oil carrier in the softgel may enhance absorption for slightly faster onset. Alpha brain wave increases occur within 40 minutes. Benefits are immediate — no loading period needed.
Also consider
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