Review · Hearing health

NeuroQuiet review: what the label and research show

NeuroQuiet is a liquid spray marketed for hearing support, focus and calmer nerves. We read its label and compared the disclosed formula with human research. The main limitation is substantial: the formula hides every active ingredient amount in two blends.

By Grant Whitaker, Editor · Updated October 23, 2026 · 10 PubMed references checked

What NeuroQuiet is

NeuroQuiet is a 1 fl oz (30 mL) sublingual liquid sold through neuroquiethq.com. The label directs users to shake the bottle, take two sprays in the morning and four before bed, hold the liquid under the tongue for 20 seconds, then swallow. The sales page describes the product as hearing support and also promotes focus, nerve function and calm. It says that customers may notice less noise and better ear health, but it does not present a controlled human trial of this product.

Its package selector lists two bottles for 60 days at $79 per bottle ($158 total) plus shipping, three bottles for 90 days at $69 each ($207 total) with free US shipping and three bonuses, and six bottles for 180 days at $49 each ($294 total) with free US shipping and three bonuses. All options show a 90-day money-back guarantee. A single-bottle option was not shown in the page we checked. The two-bottle card’s “save” figure is based on a crossed-out total; we report the actual listed charge rather than that comparison.

The label: two blends, no individual doses

The Supplement Facts panel lists a serving size of six sprays and 30 servings per bottle. It names a 2,000 mg Growth Factor Complex containing alpha-glycerophosphoryl choline (Alpha-GPC), gamma-aminobutyric acid (GABA), L-Dopa Bean (whole plant) and Moomiyo (whole plant). An additional 1,000 mg HGA Blend lists ornithine HCl, L-glutamine, L-arginine, L-lysine, L-valine, L-isoleucine, L-tyrosine and glycine. Neither panel gives the amount of any one ingredient, the plant species or the standardization of the extracts. “Moomiyo” is not further identified on the label.

So the formula provides 3,000 mg total across the two blends, but that number cannot tell us how much Alpha-GPC, GABA, Mucuna or any amino acid the daily serving contains. We did not infer missing doses. This is a meaningful weakness for both evidence and safety: there is no way to match a person’s exposure to a study amount.

Formula next to the research

Evidence for hearing and ear comfort

We found no human study testing this specific spray, and searches for its named ingredients did not identify a hearing trial that establishes this combination as useful for hearing thresholds or general ear comfort. Research on supplements for tinnitus is only adjacent evidence, not proof for this product or for other types of hearing change. A 2022 Cochrane review included 12 Ginkgo studies with 1,915 participants and found very uncertain evidence with little or no difference in tinnitus severity versus placebo. NeuroQuiet does not list Ginkgo anyway ^[1].

A separate systematic review of nine randomized trials and 390 adults found inconsistent results across several unrelated over-the-counter products and could not draw firm conclusions ^[2]. A large internet survey reported mixed self-perceptions among supplement users, but it was not a controlled efficacy trial and cannot establish benefit ^[3]. We found no publication validating the sales page’s assertion that this blend supports hearing through “balanced nerve function.” The precise nerve mechanism remains unsubstantiated in the product evidence we reviewed.

Cognition, calm and other listed ingredients

The sales page also makes general claims about focus, relaxation and cognitive well-being. An Alpha-GPC trial in adults with mild cognitive impairment used 600 mg daily for 12 weeks and assessed cognitive scores, not hearing ^[10]. NeuroQuiet neither discloses its Alpha-GPC amount nor presents a comparable study of its formula. The GABA safety review noted some small, transient blood-pressure decreases and limited dose-specific evidence ^[4]. These findings do not establish a calming effect from this spray.

Mucuna pruriens can contain levodopa. Clinical studies have examined it as a source of levodopa in people with Parkinson’s disease, with measured amounts and medically supervised protocols ^{[6] [7]}. Those findings do not support a hearing benefit. They do make it especially important to ask a clinician or pharmacist about the undisclosed Mucuna dose if you use Parkinson’s medication or other medicines affecting dopamine. A small pharmacokinetic report also found that a Mucuna preparation altered levodopa exposure compared with standard levodopa formulations ^[8].

What the marketing says and what we could verify

The sales page uses broad phrases such as “optimal hearing wellness,” “balanced nerve function,” and “less noise and better ear health.” These statements imply broad outcomes but do not specify a measurable result, a study population or a time period. We could not trace the central hearing-support promise to a published clinical trial of NeuroQuiet, its exact blend or an amount that could be compared with research.

The page also says the formula is based on modern science and precise ratios. The label’s two undisclosed blends prevent readers from checking those ratios. The product’s own listed references are broad ingredient or brain-health topics; they do not establish clinical effects of the marketed product. We treat the evidence claim as unverified rather than assume that studies of individual nutrients transfer to this blend.

How it compares with other hearing-health offers

We also reviewed AquaPeace, Audifort, Quietum Plus, SharpEar, SonoVive, Sonus Complete, ZenCortex and Zeneara. NeuroQuiet shares L-arginine and L-tyrosine with Quietum Plus, along with a Mucuna ingredient, but their labels and combinations differ; we found no basis to call them the same formula. NeuroQuiet’s liquid delivery and very large proprietary blend stand out, while the other reviews also raise distinct concerns about dose disclosure, label fit and evidence. None should substitute for professional hearing assessment.

Price and refund terms

At the page check, the lowest per-bottle price was $49 in the six-bottle package, a $294 outlay before tax. The three-bottle package costs $207 with free US shipping. The two-bottle option totals $158 and adds shipping at checkout. All show a 90-day money-back guarantee. We could not confirm the refund process details or whether return shipping is deducted from the page excerpt, so review the current terms before purchase.

Safety

Because doses are hidden, the safety profile of the full serving cannot be confidently assessed. GABA safety literature reports that some studies observed a modest temporary decrease in blood pressure and notes a possible additive effect with blood-pressure medicines ^[4]. L-arginine trials also found average blood-pressure reductions at gram-level doses, though the amount in this product is unknown ^[9]. Mucuna can contribute levodopa exposure; consult a doctor or pharmacist before use if you take Parkinson’s medication or other drugs that affect dopamine. Bring the full label to that conversation if you take prescriptions, blood-pressure medicine or supplements.

Results vary. Talk with your doctor before starting a new supplement, especially when you take medication or have a health condition. An audiologist can assess hearing changes and help determine whether hearing protection, hearing aids or another evaluation is appropriate. New, sudden or worsening hearing symptoms, pain, drainage, dizziness or persistent ringing deserve medical care.

What we liked and what gave us pause

Frequently asked questions

Does NeuroQuiet have a hearing study?

We found no published human trial of NeuroQuiet. Research on an ingredient for cognition, or research on a different supplement for tinnitus, cannot show that this product improves hearing.

Can I tell how much of each ingredient it contains?

No. The label gives 2,000 mg for the Growth Factor Complex and 1,000 mg for the HGA Blend. It does not separate the amounts of the ingredients inside either blend.

Can NeuroQuiet replace my hearing aids or an audiologist visit?

No. Do not delay evaluation of new or worsening hearing concerns. An audiologist can test hearing and discuss appropriate options.

How long should I try it?

No product trial establishes a duration or expected result. Check the current refund terms and discuss use with your clinician. Results vary, and no supplement should delay care.

How we reviewed NeuroQuiet

We followed the ClickBank hoplink to the product page, read the visible Supplement Facts panel, checked the vendor’s affiliate terms and searched PubMed for human research relevant to the listed ingredients and marketed hearing outcomes. We did not test the product on people, and nobody at Stark Verve is a medical professional. Read our editorial policy to learn how we choose and update reviews. Stark Verve earns a commission if you buy through our links; that never changes what we write about the evidence.