HEAD-TO-HEAD · UPDATED 2026-07-03 · TESTED 51 NIGHTS
Sports Research L-Theanine 200mg vs Doctor's Best High Absorption Magnesium Glycinate 200mg (240ct)
Hands-on testing, dimension-by-dimension verdicts, and honest deal breakers. Total cost of ownership over 3 years included.
Sports Research
Sports Research L-Theanine 200mg
$17.95
Doctor's Best
Doctor's Best High Absorption Magnesium Glycinate 200mg (240ct)
$19.99
VS
Six-dimension score
How they compare across every dimension
Sports Research L-Theanine 200mg
Doctor's Best High Absorption Magnesium Glycinate 200mg (240ct)
Sleep tracking0·5
Battery0·10
Comfort7·8
App + UX0·5
Value8·10
Insights0·5
Our pick · overall
Doctor's Best High Absorption Magnesium Glycinate 200mg (240ct)
Wins on editor score (9/10 vs 7.9/10) and long-term value. Best for: Restless legs, muscle tension, anxiety-driven insomnia, athletes.
$19.99vs $17.95
Side by side
Spec-by-spec comparison
| Spec | Sports Research | Doctor's Best |
|---|---|---|
| Best price today | $17.95wins | $19.99 |
| MSRP | $22.95wins | $24.99 |
| Editor score | 7.9/10 | 9/10wins |
| User rating | 4.6 (15,000) | 4.7 (62,430)wins |
| Subscription | None | None |
| Editor tested | 21 nights | 30 nightswins |
Where to buy
Best prices right now
Sports Research L-Theanine 200mg
Sports Research
$17.95
Doctor's Best High Absorption Magnesium Glycinate 200mg (240ct)
Doctor's Best
$19.99