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Stress Off is a once-daily capsule built on three clinically dosed actives - KSM-66® ashwagandha, magnesium glycinate and L-theanine, that work together on cortisol, sleep and reactivity. Not a sedative. A baseline that lowers the volume.
Two capsules daily with water, with or without food. Morning for all-day calm, evening for sleep. Consistency matters more than timing, give it a full 30 days.
Single-ingredient supplements leave gaps. Stress is cortisol, sleep, reactivity and the background hum all at once, so Stress Off covers all four at the doses the research actually used.
KSM-66® Ashwagandha 600mg · Magnesium Glycinate 200mg · L-Theanine 200mg. No proprietary blends, no filler. Third-party tested every batch with a COA on file.
2,100+ verified reviews
Real doses, not proprietary blends
Every single batch, COA on file
Money-back, no questions asked
Every active is dosed to the level the research actually used, then third-party tested so the label matches the bottle.
“KSM-66® at 600mg is the dose used in clinical trials, not the 200mg most brands use just to put it on the label.”
Three actives. Each clinically dosed. Each with a documented, specific role.
Withanolides inhibit over-activation of the HPA axis, directly lowering serum cortisol, the primary stress biomarker.
Modulates the stress response system without sedation. Calms without numbing. Non-habit-forming by definition.
Withanolides bind GABA-A receptors, promoting the brain's natural inhibitory response without dependency risk.
Reduces oxidative stress and inflammatory markers linked to long-term stress load and masking exhaustion.
Magnesium acts as a natural NMDA receptor antagonist, blocking the glutamatergic pathways responsible for fear, anxiety and panic responses.
Enhances GABAergic inhibitory neurotransmission, the same pathway targeted by benzodiazepines, without dependence risk.
Mg deficiency directly causes HPA axis dysregulation and elevated anxiety. Supplementation restores inhibitory control over the stress response.
Modulates melatonin and cortisol circadian cycles. Deficiency is directly linked to 3am wake-ups and non-restorative sleep.
Dose-dependently increases alpha oscillatory activity (8–13Hz) in parietal and occipital regions, the same EEG signature observed during meditation.
Increases brain levels of GABA, serotonin and dopamine without sedation or dependency. Calming effects last 8–10 hours from a single dose.
Reduces cortical neuron excitation, measurable via heart-rate variability and salivary immunoglobulins under acute stress conditions.
Effects felt within 30–45 minutes of ingestion at 50–200mg. Same-day calm response from day 1 of supplementation.
Most stress supplements fix one signal. But anxiety is cortisol, sleep, reactivity and the background hum, all at once.
| Riverwell | Other brands | |||
|---|---|---|---|---|
| KSM-66® 600mg (clinical dose) | ✓ | ✕ | ||
| L-Theanine 200mg | ✓ | ✕ | ||
| Magnesium Glycinate 200mg | ✓ | ✕ | ||
| No proprietary blend | ✓ | ✕ | ||
| Third-party tested | ✓ | Rarely | ||
| Vegan · Non-GMO | ✓ | Variable |
Three weeks in I noticed I'd stopped clenching my jaw at my desk. Didn't expect to clock that.
I'm not floaty. I'm just less reactive to email. That was the whole point for me.
The baseline actually shifted. That's rare for anything in this category.
Individual results may vary. These testimonials are not necessarily representative of all users.
L-theanine works same-day for calm focus. The deeper shifts, sleep, cortisol baseline, build over weeks 2–4. Most people notice the clearest change by week four, which is why the guarantee runs a full 30 days.
Ashwagandha, magnesium and L-theanine can interact with thyroid, sedative and blood-pressure medications. We're a supplement, not a substitute, check with your doctor before starting if you take anything regularly.
No. The doses are tuned for a daytime baseline, not sedation. L-theanine supports calm focus rather than fog, you should feel less reactive, not less present.
KSM-66® is a full-spectrum root-only extract standardised to ≥5% withanolides, and the most clinically studied ashwagandha on the market. We dose it at the 600mg used in trials, most brands use a fraction of that.
Yes. It's non-habit-forming and designed for daily use. Each ingredient has documented long-term safety at these doses. Many customers cycle off occasionally, entirely optional.
Take it daily for 30 days. If nothing's shifted, email us and we refund the full amount, you don't need to return the bottle.
Yes, vegan, non-GMO, gluten-free and free of artificial fillers. The capsule is plant-based cellulose.
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.
Results may vary. This product is a dietary supplement and is not a substitute for professional medical advice.