The zen switch.
Yes. No tolerance builds up. It's just an amino acid from tea.
No, it makes you calm and alert. It helps with sleep by quieting your mind, not by sedating you like a sleeping pill.
It's the perfect combo. Takes the jittery edge off caffeine, leaving you with smooth, focused energy.
Click through to the studies bar for the evidence base.
See the dosing guide below.
Compare formats before buying.
Some ingredients build up over weeks. Others act fast.
The compound effect of consistent dosing.
Check the cautions section if you have a pre-existing condition.
Some ingredients you feel. Others just work in the background.
About 3-5 hours. Perfect for getting through the workday or a study session.
You can, but you probably don't need to. 200mg is the sweet spot for focus. Higher doses might be too relaxing for daytime.
No. It's not a drug. It's an amino acid found naturally in something people have been drinking for centuries: tea.
Suntheanine is just a brand name for L-Theanine made via a patented fermentation process. Both are the same molecule and work the same way.
Most research uses 0.2g daily. Below 0.1g, you're probably wasting money. Above 0.4g, no extra benefit. The curve plateaus. Safe upper limit ~ 0.6g.
Proven to modulate caffeine effects and reduce stress.
The leaves of the tea plant (Camellia sinensis). · Trace amounts are also found in the Bay Bolete mushroom (Imleria badia).
L-Theanine interacts with other supplements and meds. The analyzer flags interactions, dose mismatches, and timing collisions across your whole list.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.