Real calm from KSM-66®, Holixer™, Relissa®, and Zembrin®
NutraBio Quiet Mind isn't your basic calm mix. It's a fully open-label stress and mood stack with premium trademarks, aimed at cutting down stress load and making mental calm feel good without zapping your energy. Smart build here. NutraBio skips relying on one sleepy ingredient and layers adaptogens for stress axis control, amino help for chill alertness, phytosome botanicals for GABA support, and targeted stuff for serotonin and PDE4 paths.
The star is KSM-66® Ashwagandha at 600mg, a full-on dose at the high end of the 300-600mg research range. This is a full-spectrum root extract with 5% withanolides, backed by 24 solid trials. It tweaks the hypothalamic-pituitary-adrenal axis, drops cortisol, and boosts GABA tone. In real life, that means less wired exhaustion, tougher stress handling, and often better sleep as you go.
Holixer™ Holy Basil at 250mg stands out because it's the exact dose from studies. Standardized to Ocimum-Bioactive Complex, it shows real drops in stress feelings and markers like hair cortisol in just two weeks. It pairs great with ashwagandha by hitting both quick stress spikes and long-term buildup.
L-Theanine at 200mg is spot on in the 100-400mg sweet spot. It gets into the brain, ramps up alpha waves, supports GABA, serotonin, dopamine, and calms overactive glutamate. Feels like smoother thoughts, less brain drag, and a chill vibe without drowsiness.
Relissa® Melissa Phytosome™ at 200mg fits right in with the evidence. Lemon balm is known for calming, but the Phytosome™
NutraBio Quiet Mind by NutraBio contains 600mg Ashwagandha Root Extract (KSM-66®), a effective dose for health and performance.
Key Highlights
- 600mg KSM-66® Ashwagandha — solid full dose at the top of the 300-600mg range from studies. This is where you see real cortisol drops, better stress handling, and some sleep help, not the weak 125-300mg doses in basic formulas.
- 250mg Holixer™ Holy Basil — exactly the dose from the research, no guessing. Studies on this extract show big cuts in stress feelings and markers, making it a strong second adaptogen next to ashwagandha.
- 200mg L-Theanine — right in the proven zone for chill alertness. It boosts alpha waves and eases over-excited signals, so you feel calmer and clearer, not knocked out.
- 200mg Relissa® Melissa Phytosome™ — a good dose of boosted lemon balm extract. The Phytosome™ setup helps absorption of the key stuff, working by saving GABA through enzyme blocking.
- 100mg Magnolia Extract standardized to 90% Honokiol + Magnolol — super concentrated for calm. NutraBio went with this potent extract over basic bark, perfect for quick edge easing.
- 25mg Zembrin® — the precise dose from studies on this top Sceletium tortuosum extract. It hits serotonin reuptake and PDE4, adding mood and calm that most adaptogen mixes skip.
- 30mg LANDKIND® Salidroside — clean, fermented Rhodiola active that's better sourced than wild stuff. At 30mg it's under the 60mg research target, but it still chips in solid adaptogen support.
- Five trademarked ingredients in one stack — KSM-66®, Holixer™, Relissa®, LANDKIND®, and Zembrin®. That's key because trademarks mean better consistency, cleaner materials, and real data over generic fluff.
NutraBio Quiet Mind by NutraBio contains 600mg Ashwagandha Root Extract (KSM-66®), a effective dose for health and performance.
Who Is This For?
- Pros with non-stop brain work who stay 'on' after hours. Quiet Mind gives quick smoothing from L-Theanine, Relissa®, Magnolia, and Zembrin®, with KSM-66® and Holixer® cutting long-term stress buildup over weeks.
- Evening lifters skipping late pre-workouts but needing clear-headed chill post-gym. Stim-free and built to downshift nerves, it's great after rough days and sessions.
- Students, writers, creators wanting calmer focus without drowsiness. Theanine brings relaxed alertness, Zembrin® adds mood and brain steadiness, adaptogens cut stress that breaks concentration.
- High-stress folks who don't handle melatonin bombs well. This is for daytime/evening balance, not groggy sleep, so it fits if you want even vibes without morning fog.
- Adults feeling stress as tight jaw, chest squeeze, grumpiness, or racing thoughts. HPA support from KSM-66® and Holixer® plus GABA helpers like Relissa® and theanine match that exactly.
- Shift workers and parents needing smooth switches between life stuff without brain fog. Better for emotion control and easy unwind than a bedtime-only sleep aid.
How to Use
Take 2 veggie capsules with water once a day or when needed for your stress vibes. For daytime focus, hit it 30-60 minutes before big work, travel, or pressure spots. For evening chill, go 60-90 minutes before you want your mind to ease up. If you're sensitive to calm supps or plant actives, try 1 cap first to check it out. Light meal's fine, but away from heavy food might make the start feel sharper. Pairs well with magnesium glycinate, good hydration, and a no-stim night routine; if you're on caffeine, this can smooth the afternoon without adding buzz. Daily is best for KSM-66® and Holixer® consistency, but spot use works for quick composure. Keep it cool and dry with the lid tight, since botanicals and caps stay fresh that way.
What to Expect
First 20-40 minutes, it's not a big rush; it's more like the rush fading. You notice subtler quiet from L-Theanine, Relissa®, magnolia, and Zembrin® — less rush, less noise, easier to dive into tasks or relax. By 45-90 minutes, it feels fuller and more even, especially if you started wired. Over the first week, the quick calm gets reliable for timing around work or evenings. Weeks 2-4 bring the adaptogen depth from KSM-66® and Holixer® — less snap reactions, better stress tolerance, smoother baseline. Not for sedative vibes; this shines if you want a calmer system that builds over time.
Key Ingredients
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KSM-66® Ashwagandha Root Extract — 600mg — Full clinical ashwagandha for lower stress and steadier mood
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Holixer™ Holy Basil Extract — 250mg — Clinically studied holy basil for acute and chronic stress
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L-Theanine — 200mg — Relaxed alertness without sedation or stimulant crash
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Relissa® Melissa Phytosome™ — 200mg — Bioavailable lemon balm for calmer evenings and better emotional control
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Magnolia Extract — 100mg — Concentrated honokiol and magnolol for fast edge-softening calm
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LANDKIND® Salidroside — 30mg — Clean, purified Rhodiola bioactive for stress resilience support
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Zembrin® — 25mg — Researched Sceletium for mood, composure, and calm focus
NutraBio Quiet Mind by NutraBio contains 600mg Ashwagandha Root Extract (KSM-66®), a effective dose for health and performance.
Frequently Asked Questions
How much caffeine is in NutraBio Quiet Mind?
None. Despite the metadata artifact, this formula is functionally stim-free and contains no listed caffeine source. Its calming and focus effects come from ingredients like L-Theanine, KSM-66® Ashwagandha, Relissa®, Magnolia, and Zembrin®, not stimulants.
Is Quiet Mind a sleep aid or a daytime stress formula?
It is better described as a calm-focus and stress-support formula that can also fit an evening routine. Ingredients like L-Theanine, Relissa®, magnolia, and Zembrin® can help you unwind the same day, while KSM-66® and Holixer™ are aimed at longer-term stress resilience rather than just knocking you out before bed.
Is the 600mg KSM-66® dose actually meaningful?
Yes. 600mg is the top end of the clinically supported 300-600mg range and is the dose most commonly associated with stronger reductions in stress and cortisol in human research. This is not a token inclusion.
Why does this formula use both Ashwagandha and Holy Basil?
Because they complement each other rather than duplicate each other. KSM-66® Ashwagandha is one of the best-supported cortisol and stress-resilience ingredients on the market, while Holixer™ Holy Basil has specific clinical data on both perceived stress and measurable stress biomarkers like hair cortisol.
What does 200mg L-Theanine feel like in this product?
At 200mg, most users feel mentally smoother, less overstimulated, and more able to stay composed under pressure. It usually does not feel sedating on its own; it feels like reduced mental static.
Is Quiet Mind fully transparent?
Yes. There is no proprietary blend here. Every active ingredient and dose is disclosed, which is a major advantage in the stress-support category where hidden-dose formulas are still common.
Is any ingredient underdosed?
Most of the core formula is very well built, especially KSM-66®, Holixer™, L-Theanine, Relissa®, and Zembrin®, which all sit at clinically relevant doses. The one ingredient that appears below the strongest research target in the provided data is LANDKIND® Salidroside at 30mg, since the referenced clinical target is 60mg.
How long does Quiet Mind take to work?
Some ingredients can be felt the first day, especially L-Theanine, Relissa®, magnolia, and Zembrin®, often within 30-90 minutes. The fuller adaptogenic benefits from KSM-66® and Holixer™ generally build over 2-4 weeks of consistent use.
Can I stack Quiet Mind with coffee or a pre-workout?
Yes, but use common sense. Quiet Mind does not contain stimulants, and L-Theanine in particular often pairs well with caffeine to smooth overstimulation. It is more appropriate with moderate daytime caffeine than with extremely aggressive high-stim products.
Who should be cautious with this formula?
Anyone using antidepressants, anti-anxiety medications, sedatives, thyroid medication, or who is pregnant or nursing should speak with a clinician first. Zembrin® has serotonin reuptake activity, and ashwagandha can affect endocrine pathways, so this is not a formula to combine casually with medications.
