SUPPLEMENTS·SPORTS RESEARCH
Sports Research L-Theanine 200mg
4.6 · 15,000 reviews
Editor score7.9/10
Best for: Buyers who want a named, third-party-tested form
Price
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At Walmart · price changes often, check before buying
Buy at Walmart ↗Updated 2026-07-03
Active
L-theanine (Suntheanine) 200mg
Form
MCT-oil softgel
Count
60 softgels
The branded-form option — Suntheanine L-theanine in coconut-oil softgels, third-party tested, at a premium over the plain-capsule version.
L-theanine is an amino acid found in tea leaves. Sports Research uses the patented Suntheanine form in MCT-oil softgels, third-party tested, at 200mg per softgel — 60 to a bottle. The trade against NOW's version is a named form and a third-party seal for a higher price per unit.
Where to buy
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Prices for this product are not currently verified — check the retailer's site for the price that applies. As an Amazon Associate and affiliate we may earn a commission on purchases made through these links, at no extra cost to you.
How our prices work
We show the lowest price we found at our last check (2026-07-03) and the manufacturer's list price for comparison. Retail prices — Amazon's especially — move constantly, so treat these as a guide: the price shown on the retailer's own page at checkout is the one that applies. Tap through to see each retailer's current price.
Should you buy it?
What we like
- Patented Suntheanine form, named on the label
- Third-party tested
- Softgel rather than a dry capsule
What to know before buying
- Costs more per unit than NOW's basic theanine
- Softgels are coconut-derived (allergy note)
- 60 softgels per bottle against NOW's 120 capsules
At a glance
ActiveL-theanine (Suntheanine) 200mg
FormMCT-oil softgel
Count60 softgels
Certification3rd-party tested, patented form
Best forNamed, third-party-tested form
Compare with alternatives
Quick verdicts for the supplements most often considered alongside the Sports Research L-Theanine 200mg.
VS·HEAD-TO-HEAD
Sports Research L-Theanine 200mg vs NOW Foods L-Theanine 200mg (120ct)
The best-value pure L-theanine — 200mg per capsule, GMP-certified, and $15.79 for 120 servings.
→ Single-ingredient theanine at the lowest cost per capsule
VS·HEAD-TO-HEAD
Sports Research L-Theanine 200mg vs Doctor's Best High Absorption Magnesium Glycinate 200mg (240ct)
The highest-rated magnesium on Amazon — 240 tablets from Doctor's Best.
→ Value-focused buyers, athletes
VS·HEAD-TO-HEAD
Sports Research L-Theanine 200mg vs Nested Naturals LUNA Sleep Aid
The kitchen-sink botanical — melatonin, valerian, chamomile, L-theanine and magnesium in one capsule, with a melatonin-free version for purists.
→ One-capsule botanical stacks, melatonin-free option
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Frequently asked questions
Theanine vs melatonin?
See /natural-sleep-remedies for what the trial evidence actually shows on each.
Suntheanine vs generic theanine?
Suntheanine is a patented single-isomer L-theanine made by Taiyo. Generic listings often don't state which isomer mix they contain. The practical difference here is that this label names its form and a generic one may not.
Can I take it with coffee?
We don't publish dosing or combination guidance — ask a pharmacist or your doctor.
Softgel vs capsule?
An MCT-oil softgel versus NOW's dry veg capsule. Sports Research charges more for the softgel format and the named form; NOW is cheaper per unit and ships 120 against this bottle's 60.
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