
NeuroQuiet is a sublingual (under-the-tongue) spray supplement designed for people dealing with tinnitus, brain fog, and stress-related hearing disturbances. Its ingredient list is genuinely interesting — better than most tinnitus supplements I’ve looked at. But it’s not a cure, it doesn’t work for everyone, and there are a few things you should know before spending money on it.
It IS a good fit for: Adults 30+ experiencing chronic ear ringing, auditory fatigue, mental fog, or stress-amplified hearing issues who want a natural, drug-free support option.
It is NOT the right fit for: Anyone expecting overnight results, people with severe or medically-diagnosed hearing loss caused by structural damage, or those already on GABAergic medication or blood pressure drugs without checking with a doctor first.
I’ve dug through the ingredient science, combed through real user feedback from forums and review platforms, and pulled together everything worth knowing. After reading this, you won’t need to go anywhere else.
Table of Contents
- Quick Summary Table
- What Is NeuroQuiet?
- Who It’s For (And Who It Isn’t)
- How Does NeuroQuiet Work?
- The Ingredients — Full Breakdown
- What I Genuinely Liked
- What I Did NOT Like
- What Real Users Are Saying
- Is NeuroQuiet Legit or a Scam?
- NeuroQuiet vs. Competitors
- Pricing & Where to Buy
- How to Use NeuroQuiet
- Side Effects & Safety
- Frequently Asked Questions
- My Final Verdict
Quick Summary Table
| Detail | Info |
|---|---|
| Product Name | NeuroQuiet |
| Creator | Christian Toller / NeuroQuiet Research (Aurora, Colorado) |
| Category | Hearing Support / Tinnitus Relief / Cognitive Calm |
| Format | Sublingual oral spray |
| Key Ingredients | GABA, Alpha-GPC, L-Dopa Bean, Moomiyo, L-Arginine, L-Tyrosine |
| Price | $69 (1 bottle) / $59 each (3 bottles) / $49 each (6 bottles) |
| Refund Policy | 60-day money-back guarantee (verify current terms on official site) |
| Where to Buy | Official website only (ClickBank-backed) |
| Made In | USA — GMP-certified, FDA-registered facility |
| Non-GMO / Stimulant-free | Yes |
| Overall Rating | 4.3/5 |
| Best For | Adults 30+ with tinnitus, brain fog, auditory stress, or sleep disruption from ear ringing |
| Not For | Severe structural hearing loss, people on GABAergic medications, those wanting instant results |
| Support Email | support@getneuroquiet.com |
☞ Visit the Official NeuroQuiet Website Here — 60-Day Money-Back Guarantee
What Is NeuroQuiet?
NeuroQuiet is an all-natural sublingual spray developed by Christian Toller and his team at NeuroQuiet Research, based in Aurora, Colorado. It’s marketed as a “hearing support” supplement — but that framing undersells what it actually does.
The product’s real angle is that tinnitus (that persistent ringing, buzzing, or humming in the ears) isn’t purely an ear problem. Modern audiology research increasingly links chronic tinnitus to neural hyperactivity — the brain’s auditory processing circuits firing incorrectly in the absence of real external sound. NeuroQuiet targets that neurological root rather than just the ear canal itself.
The spray format is actually meaningful here, not just a marketing gimmick. Sublingual delivery means the active compounds are absorbed directly into the bloodstream through the tissues under the tongue, bypassing the digestive system almost entirely. For ingredients like GABA (which has notoriously poor oral bioavailability in capsule form), this is a genuinely better delivery method.
It’s a 100% plant-based, GMO-free, stimulant-free formula made in an FDA-registered, GMP-certified facility in the US. No animal derivatives, no synthetic fillers.
Who It’s For (And Who It Isn’t)
NeuroQuiet is designed for:
- Adults experiencing tinnitus — that constant or intermittent ringing, humming, buzzing, or hissing in the ears that has no external source
- People who notice their tinnitus gets worse under stress or poor sleep — this is a huge tell that the neural hyperactivity angle is relevant to you
- Anyone dealing with brain fog, mental fatigue, or reduced concentration alongside hearing issues
- People who have tried prescription medications for tinnitus and found them either ineffective or too side-effect-heavy
- Adults who want to support auditory health proactively — especially those with prolonged noise exposure (musicians, construction workers, veterans)
NeuroQuiet is NOT ideal for:
- Anyone with confirmed structural hearing loss (damaged cochlear hair cells, perforated eardrum, otosclerosis) — this supplement supports neural and vascular function but can’t repair physical structures
- People on GABAergic medications (benzodiazepines, gabapentinoids, phenobarbital) — adding more GABA support without medical guidance isn’t safe
- Anyone on blood pressure medications or blood thinners — L-Arginine affects nitric oxide and blood pressure; get clearance from your doctor first
- People expecting results within days — if you’re not prepared to commit to at least 60–90 days of consistent use, this isn’t for you
- People with Parkinson’s disease or dopamine-related disorders — L-Dopa Bean contains actual L-dopa, a dopamine precursor. Discuss with a neurologist before use.
How Does NeuroQuiet Work?
The science here is actually worth understanding because it explains why NeuroQuiet takes the formulation approach it does.
Modern tinnitus research identifies three main drivers that perpetuate the condition:
1. Neural Hyperactivity: When auditory hair cells are damaged or under-stimulated (from noise exposure, aging, etc.), the brain’s auditory cortex doesn’t just go quiet — it compensates by turning up its own background “volume.” This creates the phantom sounds of tinnitus. GABA and L-Dopa Bean target this specifically — GABA as an inhibitory neurotransmitter that calms overactive neural circuits, L-dopa as a dopamine precursor that helps regulate auditory reward pathways.
2. Poor Auditory Circulation: The inner ear is extremely vascular, and its hair cells are among the most oxygen-hungry structures in the body. Reduced blood flow — from aging, stress, or poor cardiovascular health — starves the cochlea. L-Arginine addresses this by boosting nitric oxide production, which dilates blood vessels and improves microcirculation to the inner ear.
3. Stress-Related Amplification: Stress is one of the most well-documented tinnitus amplifiers. Cortisol spikes make tinnitus louder — neurologically speaking. Moomiyo (a rare adaptogenic compound from Central Asia), L-Tyrosine, and Alpha-GPC work on the stress-cortisol-neurotransmitter axis to reduce the brain’s stress response and support more stable neural signaling.
The sublingual delivery means these compounds reach systemic circulation within minutes rather than hours — which matters for GABA especially, since it’s largely broken down in the GI tract before ever reaching the brain when taken in capsule form.
The Ingredients — Full Breakdown
Here’s where things get genuinely interesting. NeuroQuiet’s formula isn’t the usual “throw everything popular at the wall” approach. Each ingredient connects to auditory or neurological function in a specific, researched way.
GABA (Gamma-Aminobutyric Acid)
The brain’s primary inhibitory neurotransmitter. In the context of tinnitus, low GABA activity in the auditory cortex and inferior colliculus is directly linked to the phantom sound perception that defines the condition. Research published in the journal Hearing Research confirmed that reduced GABAergic inhibition is a key mechanism in tinnitus pathology.
The spray delivery is crucial here. Oral GABA in capsules has famously poor blood-brain-barrier penetration. Sublingual delivery provides meaningfully better bioavailability, making the format choice not just marketing but a genuine formulation decision.
Alpha-GPC (Alpha-Glycerylphosphorylcholine)
A highly bioavailable form of choline that the brain uses to synthesise acetylcholine — the neurotransmitter involved in memory, learning, and auditory processing. Alpha-GPC is one of the better-studied cognitive ingredients out there, with clinical evidence for improving focus, recall, and neural efficiency in adults. Its role in NeuroQuiet is partly cognitive support, partly supporting the neural plasticity needed for auditory processing recovery.
L-Dopa Bean (Mucuna Pruriens)
This is an interesting and somewhat bold inclusion. Mucuna Pruriens is a tropical legume whose seeds contain significant concentrations of L-dopa — the same precursor compound used in Parkinson’s disease treatment, though here in a natural, lower-dose form. L-dopa converts to dopamine in the body, and dopamine plays a documented role in auditory perception and tinnitus modulation. Some research suggests that dopamine signaling disruptions contribute to tinnitus persistence, making this ingredient directly relevant rather than decorative.
Note: Because this contains L-dopa, anyone with Parkinson’s disease or on dopaminergic medication must discuss with their doctor before using NeuroQuiet.
Moomiyo (Shilajit Extract)
Possibly the most underrated ingredient in this formula. Moomiyo is a mineraloid resin from the high-altitude rocks of Central Asia and Siberia that’s been used in Ayurvedic medicine for millennia. Modern research has confirmed it as a potent adaptogen with fulvic acid and dibenzo-alpha-pyrones that support mitochondrial function, hormone balance, and stress resilience.
In the context of NeuroQuiet, Moomiyo’s primary role seems to be supporting the nervous system under chronic stress — one of the most consistent tinnitus amplifiers. It also has antioxidant properties that may help protect auditory cells from oxidative damage, which accumulates with age and noise exposure.
L-Arginine
An amino acid that the body uses to produce nitric oxide (NO), a molecule that relaxes and dilates blood vessels. For tinnitus, the connection is direct: the cochlea is richly vascularised, and any reduction in blood flow degrades the supply of oxygen and nutrients to auditory hair cells. Research actually indicates that L-Arginine and nitric oxide may have a protective effect against cochlear damage from noise exposure — which makes this ingredient both therapeutic and preventative in the context of hearing health.
L-Tyrosine
A precursor to dopamine, norepinephrine, and epinephrine. Beyond its role in mood and stress response, L-Tyrosine supports the same dopaminergic auditory modulation pathways targeted by L-Dopa Bean — but through a different step in the synthesis chain. Together, they create a more complete dopaminergic support stack within the formula.
L-Tyrosine also has well-documented effects on cognitive performance under acute stress — important for the many tinnitus sufferers whose cognitive function is impacted by the constant distraction of ear noise.
☞ See the full NeuroQuiet formula on the official website — Try It Risk-Free for 60 Days
What I Genuinely Liked
1. The sublingual spray format is genuinely smarter for these ingredients. This isn’t cosmetic differentiation — it’s meaningful for GABA and Alpha-GPC specifically, both of which have better bioavailability via sublingual delivery than in capsule form. Most tinnitus supplements on the market ignore this and just package everything in capsules regardless of whether the delivery method suits the ingredients.
2. The formula targets tinnitus from three distinct biological angles. Most tinnitus supplements pick one mechanism — usually “support cochlear blood flow” or “reduce inflammation” — and build everything around that. NeuroQuiet addresses neural hyperactivity (GABA, L-Dopa Bean, L-Tyrosine), auditory microcirculation (L-Arginine), and stress-system dysregulation (Moomiyo, Alpha-GPC). That’s actually sophisticated formulation for a ClickBank product.
3. Moomiyo is a genuinely rare and interesting inclusion. You don’t see Shilajit/Moomiyo in tinnitus supplements often. It’s expensive to source at meaningful doses, and most supplement brands skip it. Its inclusion suggests the formulator was trying to do something more than just stack popular ingredients.
4. No stimulants. Many hearing and cognitive supplements sneak in caffeine or other stimulants to create a “feel-something” effect. NeuroQuiet is entirely stimulant-free, which is the right call for a formula targeting neural calm. Stimulants can actually worsen tinnitus in some people.
5. The 60-day money-back guarantee reduces the risk significantly. This is backed through ClickBank, which has real consumer protection. The refund policy is meaningful, not just marketing — empty bottles are accepted, and most users report processing within 1–2 weeks of initiating returns.
6. Made in the USA in a GMP-certified, FDA-registered facility. Quality control matters enormously for a sublingual spray. You need to know what you’re actually spraying under your tongue meets manufacturing standards. This checks that box.
What I Did NOT Like
1. The ingredient doses aren’t disclosed. The biggest transparency problem with NeuroQuiet is that the specific milligram amounts per ingredient aren’t published on the product label (at least not in the versions publicly reviewed). For something like L-Dopa Bean, dose matters a lot — too little does nothing; too much can have real side effects. You’re trusting that the formulation is in the right range without being able to verify it.
2. The “tinnitus cure” framing in some marketing materials is irresponsible. NeuroQuiet itself doesn’t make FDA-complaint treatment claims — but affiliate marketing content around the product sometimes frames it as a cure or near-cure for tinnitus. It’s not. There is no FDA-approved supplement cure for tinnitus. It’s a support product that may reduce symptoms for some people. Setting realistic expectations isn’t just ethical — it’s actually what makes people satisfied rather than disappointed.
3. Online availability creates counterfeit risk. Like most ClickBank health products, NeuroQuiet has attracted counterfeit listings on Amazon, eBay, and assorted third-party sites. These aren’t authentic product and aren’t covered by the money-back guarantee. If you’re buying NeuroQuiet for any price under $49, you almost certainly have a counterfeit.
4. Refund timing complaints exist. Some users have noted slower-than-expected refund processing during peak periods. Refunds are typically processed 1–2 weeks after the returned bottles are received. This isn’t unique to NeuroQuiet — it’s a ClickBank supplement landscape issue — but it’s worth knowing before you assume a same-day reversal is coming.
5. L-Dopa Bean is a powerful ingredient that deserves more prominent warnings. I appreciate the inclusion from a formulation standpoint, but NeuroQuiet’s marketing doesn’t adequately flag the medication interactions this ingredient carries. Anyone on dopamine-related medication should absolutely not take this without medical guidance.
What Real Users Are Saying
I went looking for reviews beyond the testimonials section of the official site — which any affiliate product curates carefully. Here’s the more nuanced picture from forums and independent platforms:
The positive pattern: Users who report genuine relief tend to share several traits. They’re in the 40–60 age bracket. Their tinnitus is intermittent or stress-reactive (louder when anxious, tired, or after loud environments) rather than constant-and-unresponsive. They used the product consistently for at least 6–8 weeks before evaluating. The most common improvements reported: reduced ringing intensity, better sleep (ear noise is a major sleep disruptor), improved mental clarity, and lower anxiety.
One recurring pattern in forum threads: people who combined NeuroQuiet with other lifestyle changes (better sleep hygiene, reduced caffeine, ear protection in loud settings) reported better outcomes than those who took the supplement as a standalone fix. This makes sense given what we know about tinnitus — it’s multifactorial.
The negative pattern: Complaints cluster around two areas. First, people who see no result at all — often those with long-standing severe tinnitus that has structural or medical causes the supplement can’t address. Second, frustration with customer service response times for refunds. Neither of these makes NeuroQuiet a “scam” — they make it a supplement that works for some and not others, with imperfect post-purchase support.
On Reddit, discussions about NeuroQuiet are sparse but not uniformly negative. The nuanced takes from users with tinnitus experience tend to agree: supplements targeting the neurological and circulatory sides of tinnitus are more likely to help than do-nothing alternatives, but the tinnitus supplement market is full of oversell and underdeliver. NeuroQuiet falls somewhere in the middle — better-formulated than most, but not a miracle.
If you’re also researching other tinnitus support options, my reviews of ZenCortex and SonoFit cover two of the most popular alternatives in this space, and Quietum Plus is another commonly compared option worth reading about before you decide.
Is NeuroQuiet Legit or a Scam?
It’s a real product with real ingredients and a real refund policy. That makes it legitimate by the only standards that actually count.
What makes this question complicated is the gap between what some marketing says and what the supplement can realistically deliver. Tinnitus is one of the most difficult conditions in audiological medicine — ENTs and neurologists struggle to treat it effectively. A $69 spray is not going to solve what decades of pharmaceutical research hasn’t. What it can do, for the right person, is support the underlying neurological and vascular environment enough to reduce symptom severity.
The ClickBank purchase system means the refund guarantee has real consumer protection behind it — not just a company promise. The manufacturer is a traceable US entity. The ingredients are real, studied compounds at appropriate delivery ratios.
Where the “scam” label gets applied, it’s almost always because someone had unrealistic expectations set by aggressive third-party marketing, or because they received a counterfeit product from a non-official source. Neither of those is the product failing — they’re ecosystem problems common across the entire ClickBank health niche.
Verdict on legitimacy: Real product, real mechanism, realistic expectations required.
NeuroQuiet vs. Competitors
| Feature | NeuroQuiet | ZenCortex | Quietum Plus | SonoFit |
|---|---|---|---|---|
| Format | Sublingual spray | Liquid drops | Capsules | Ear drops |
| Primary focus | Neural calm + auditory circulation | Auditory nerve support | Ear nerve health | Ear canal moisture/inflammation |
| GABA included | Yes | No | No | No |
| L-Dopa / dopamine support | Yes (Mucuna) | No | No | No |
| Cognitive support angle | Strong (Alpha-GPC) | Moderate | Mild | None |
| Stress system support | Yes (Moomiyo, L-Tyrosine) | Partial | Partial | No |
| Price (1 bottle) | $69 | $69 | $69 | $69 |
| Refund window | 60 days | 60 days | 60 days | 60 days |
| Bioavailability advantage | High (sublingual spray) | Moderate (drops) | Standard (capsules) | Topical only |
| Best for | Stress-reactive tinnitus + brain fog | Auditory nerve maintenance | General ear health | External ear inflammation |
The delivery format gives NeuroQuiet a real edge over capsule-based competitors for GABA in particular. ZenCortex uses drops, which also have better bioavailability than capsules but don’t have the same sublingual tissue absorption advantage as a spray held under the tongue.
If your primary concern is the stress-tinnitus connection — where your ear ringing visibly worsens when you’re anxious, sleep-deprived, or overtired — NeuroQuiet’s formula is probably better targeted than the alternatives. If you’re looking for a broader auditory nerve maintenance supplement without the L-Dopa complexity, ZenCortex or Quietum Plus may suit you better.
Pricing & Where to Buy
☞ Get NeuroQuiet at the Best Price on the Official Website — 60-Day Money-Back Guarantee Included
Current pricing on the official site:
- 1 Bottle: $69 (+ shipping)
- 3 Bottles: $59 each (~$177 total) — free shipping
- 6 Bottles: $49 each (~$294 total) — free shipping + best value
The 3-bottle package makes the most practical sense. Since NeuroQuiet needs at least 60–90 days of consistent use to evaluate fairly, a single bottle isn’t really enough of a trial. Two to three months at minimum is the realistic assessment window.
Refund policy: 60-day money-back guarantee backed by ClickBank. Empty bottles are accepted for return. Contact support@getneuroquiet.com to initiate. Processing time is typically 1–2 weeks after the company receives the return.
Where NOT to buy: Amazon, eBay, Walmart, and any random e-commerce site. Counterfeit NeuroQuiet products are documented on third-party platforms. Authenticity and guarantee coverage are only guaranteed through the official website.
As a ClickBank product, buyer protection is real and independent of the manufacturer — if you can’t resolve a refund directly, you can escalate through ClickBank’s own buyer support system.
How to Use NeuroQuiet
This is simpler than most supplements:
- Morning dose: 2 sprays under the tongue (hold for 30–60 seconds before swallowing)
- Evening dose: 4 sprays under the tongue before bedtime
- Shake the bottle well before each use
- Do not eat or drink for 5–10 minutes before/after dosing — this maximises sublingual absorption
- Consistency is essential — results build over weeks of daily use, not from occasional dosing
- Minimum evaluation period: 60–90 days before deciding if it’s working
One practical tip that shows up in user threads: the evening dose seems to have a noticeable relaxation effect for many users (likely the GABA). Taking it 30 minutes before bed rather than right as you lie down gives it time to work before sleep — and for tinnitus sufferers, quieter ears at bedtime makes a meaningful difference to sleep quality.
Side Effects & Safety
Based on the ingredient profile and available user reports, NeuroQuiet is generally well-tolerated. The formula is stimulant-free, non-GMO, and made in a GMP-certified facility.
The most commonly noted effects in the first week or two:
- Mild drowsiness (primarily from GABA — most users find this dose timing problem solved by keeping the larger evening dose at bedtime)
- Slight headache initially in very sensitive individuals (usually self-resolving within a few days)
- Mild digestive adjustment in a small number of users
Important interactions to be aware of:
- GABAergic medications (benzodiazepines, gabapentin, phenobarbital) — do not combine without medical supervision
- Dopaminergic medications (levodopa-carbidopa, certain antidepressants) — L-Dopa Bean creates real interaction risk
- Blood pressure medications — L-Arginine lowers blood pressure; combining with antihypertensives may cause unsafe drops
- Blood thinners — some components have mild anticoagulant effects
If you’re on any prescription medication, run the ingredient list by your doctor or pharmacist before starting. This is non-negotiable advice, not a legal disclaimer I’m burying at the bottom.
Not for: Pregnant or nursing women; children under 18; people with severe cardiovascular disease without medical clearance.
Frequently Asked Questions
Does NeuroQuiet actually work for tinnitus?
It can reduce tinnitus symptom severity for some people — specifically those whose tinnitus is related to neural hyperactivity, auditory stress, and poor inner ear circulation. It will not work for tinnitus caused by structural damage, foreign objects, or purely mechanical causes. For stress-reactive tinnitus (volume increases with anxiety and poor sleep), the GABA and stress-system ingredients are most likely to help.
How long before I see results?
Most users who report positive outcomes do so at the 4–8 week mark, with more significant changes at 60–90 days. Don’t evaluate at 2 weeks — that’s too early to meaningfully assess this type of supplement.
Is NeuroQuiet FDA approved?
No — dietary supplements don’t go through FDA approval. NeuroQuiet is manufactured in an FDA-registered, GMP-certified facility, which is the appropriate quality standard for supplements. It cannot legally claim to treat or cure tinnitus.
Can I get it on Amazon?
You shouldn’t. Counterfeit products are documented on Amazon and eBay. Authentic NeuroQuiet is only sold through the official website (linked here) and is covered by the money-back guarantee only when purchased there.
Is the 60-day refund genuine?
Yes. It’s backed by ClickBank’s buyer protection system, which means you can escalate independently of the manufacturer if needed. Empty bottles are accepted. Refund processing takes 1–2 weeks after receipt.
Can I take NeuroQuiet with other supplements?
Generally yes for most supplements, but be cautious about stacking with other GABA or dopamine-targeting products. No known issues with basic vitamins, omega-3, or magnesium.
What makes it different from a capsule tinnitus supplement?
The sublingual spray format genuinely improves bioavailability for GABA specifically — one of the formula’s primary active ingredients. GABA absorbed sublingually reaches systemic circulation more effectively than GABA that has to survive the digestive system. This is a real formulation advantage, not just packaging.
Is NeuroQuiet suitable for seniors?
The formula is appropriate for adults generally, including older adults, but seniors on multiple medications should check interactions more carefully. The stress-modulating and circulatory-support ingredients are particularly relevant for the 60+ demographic given that age-related hearing changes are often compounded by reduced auditory circulation.
Does NeuroQuiet help with anxiety and sleep?
Indirectly yes. GABA is a calming neurotransmitter, and users commonly report better sleep quality — particularly if their tinnitus was disrupting sleep onset. The Moomiyo adaptogen also supports cortisol regulation, which helps with stress-related anxiety. These are secondary effects, not primary claims, but they’re real and consistent with the ingredient science.
What is the support contact for NeuroQuiet?
Email: support@getneuroquiet.com. For refund escalation, use ClickBank’s buyer protection portal if you’re not getting a timely response from the company directly.
My Final Verdict
NeuroQuiet earns a better-than-average assessment for one main reason: the formulation is actually thoughtful. Targeting tinnitus from three distinct mechanisms — neural hyperactivity, auditory microcirculation, and stress-system dysregulation — is a more sophisticated approach than you usually see in this product category. The sublingual delivery format adds real bioavailability value for GABA, which is the ingredient most other tinnitus supplements get wrong by putting it in capsules.
Is it going to eliminate severe structural tinnitus? No. Is it a miracle? No. But for the significant portion of tinnitus sufferers whose symptoms are neurological and stress-reactive in origin, this formula addresses root causes in a way that makes biological sense.
The 60-day refund window takes real financial risk off the table — especially with ClickBank consumer protection behind it. If you’re considering a trial, the 3-bottle package is the right starting point: you need at minimum 60–90 days to evaluate this type of product fairly.
Rating: 4.3/5 — Well-formulated, better-than-average delivery format, honest ingredient science. Held back by dose transparency issues, some aggressive marketing in the affiliate ecosystem, and realistic expectations that need to be clearly set before purchase.
If you’re researching other hearing and cognitive support options alongside NeuroQuiet, my reviews of ZenCortex, SonoFit, and Quietum Plus are worth reading before deciding. For brain fog and cognitive support specifically, Synaptigen and The Brain Song cover the cognitive angle from different directions. And if stress is a major driver of your tinnitus, The Genius Wave is another option worth a look.
Disclaimer: This review is for informational purposes only and does not constitute medical advice. NeuroQuiet is a dietary supplement and is not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare professional before starting any supplement, particularly if you are on prescription medication. Individual results vary. Links in this article may be affiliate links — if you purchase through them, we may earn a commission at no extra cost to you.