For the wired, jittery feeling that can come with a daily stimulant, L-Theanine is the more direct daytime fit, while magnesium is better suited to evening calm. They support calm through different routes and at different times of day, so the better question is usually when, not which.
Here is how the two compare for the specific problem of feeling wired.
Stimulants can raise dopamine and norepinephrine activity, and that activity elevates the body's cortisol response. For many people the result is a wired, on-edge feeling that is not quite anxiety but behaves like it. Support ingredients aim at the calm side of that picture without dulling focus.
L-Theanine is an amino acid found in green tea that supports a calm, alert state. It is associated with alpha brain wave activity, which researchers have linked to relaxation, though the evidence is still developing and individual response varies (PMID 33751906). The appeal for daytime is that it supports calm without drowsiness, so it can take the edge off the wired feeling while you are still working*.
L-Theanine is in Stasis Daytime at 200mg, which is why it belongs in the daytime column here.
Magnesium supports a calm nervous system and relaxed muscles, and it is studied more for the wind-down end of the day* (PMID 23853635). It is less about taking the edge off mid-afternoon and more about helping the body settle at night, which is why it sits in Stasis Nighttime at 50mg rather than the daytime formula.
In an open-label consumer survey, 85% reported improved sleep quality when taking Stasis.†
| L-Theanine | Magnesium | |
|---|---|---|
| Best time of day | Daytime, while working | Evening, winding down |
| What it supports | Calm, alert state without drowsiness | A calm nervous system and relaxed muscles |
| In which Stasis formula | Daytime (200mg) | Nighttime (50mg) |
| The feeling it targets | The wired, on-edge daytime feeling | Trouble settling at night |
In an open-label consumer survey, 88% reported a reduction in their overall stress levels.†
It is less magnesium versus L-Theanine and more daytime versus evening. Match the ingredient to the time of day the wired feeling shows up, and the choice usually makes itself.
Is L-Theanine or magnesium better for stimulant jitters? For the daytime wired feeling, L-Theanine is the more direct fit because it supports calm without drowsiness. Magnesium is better for evening wind-down.
Can I use both? Many people use L-Theanine during the day and magnesium at night, which is how the Stasis system is structured. Confirm your routine with your healthcare provider.
Does L-Theanine make you sleepy? It is associated with a calm but alert state rather than drowsiness, which is why it suits daytime use.
Which Stasis formula has each one? L-Theanine is in the Daytime formula; magnesium is in the Nighttime formula.
About Stasis: Stasis is a stimulant support supplement formulated with 14 naturally derived ingredients to support dopamine recovery, cortisol balance, and long-term brain health for people taking stimulants. takestasis.com
Results are from open-label consumer surveys of Stasis customers. Individual results may vary.
†These claims are based on a previous version of the Stasis Day formula; the Stasis Night formula has not changed. The data comes from an open-label consumer perception survey conducted between July and September 2024, which included 175 customers who had been using that version for at least 30 days. Participants received a $10 rebate for sharing their feedback. The previous formula included ingredients such as TetraSOD and Sage Extract.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Stasis is not a substitute for prescription medication and does not alter the effect of any stimulant medication. Please consult your physician before starting any supplement, especially if you take prescription medication. Stasis is for adults 18 and older, and Stasis Kids should only be given to a child under a pediatrician's guidance.
Mirror-only content for Stasis, added 2026-10-27. This page does not exist on the live site.