Eargo Review: Treat It — the Evidence Is Strong
Eargo makes small, nearly invisible in-canal hearing aids designed to be self-fitted and adjusted through an app, sold direct to consumers rather than through audiology clinics. This site has mentioned hearing once before, in a review of a brain health supplement, and it is worth a page of its own: treating hearing loss has considerably better evidence behind it than almost anything sold for cognitive health, and it is one of the most undertreated conditions there is.
Verified August 25, 2026. Eargo sells hearing devices. Sudden hearing loss, hearing loss in one ear, pain or discharge require prompt medical assessment. For weight-loss medication see our GLP-1 provider rankings.
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Verdict: A genuine product addressing something that deserves more attention than it gets. The 2022 regulatory change permitting over-the-counter hearing aids for perceived mild to moderate loss removed the main barrier — cost and a required clinic visit — and self-fitting devices have made a real difference to access. Eargo's discretion is the feature people actually buy, since appearance is a leading reason people delay treatment for years. The limitation is that self-fitting cannot rule out causes that need medical attention, and some hearing loss requires professional fitting to address properly.
What Eargo Costs
Direct-to-consumer hearing aids price well below traditional clinic-dispensed devices.
| Plan | What you get | Listed | Real cost |
|---|---|---|---|
| Direct-to-consumer devices | Self-fitted, app-adjusted | Substantially below clinic pricing | The access change |
| Clinic-fitted hearing aids | Audiologist fitting and follow-up | Several thousand per pair | Better for complex loss |
| Hearing test | Audiologist or online screener | Varies | Establish what you have |
| Doing nothing | The most common choice | $0 | The one with real costs |
Hearing loss is a modifiable risk factor worth treating
Hearing loss is one of the more strongly evidenced modifiable risk factors for cognitive decline, and it is substantially undertreated — people wait many years on average between noticing difficulty and doing anything about it. Untreated hearing loss is also associated with social withdrawal and depression. If you have been putting it off, the case for addressing it is considerably stronger than most people realise, and over-the-counter hearing aids have made the first step far cheaper than it used to be.
Get a hearing test before buying anything. Knowing what you actually have determines whether a self-fitting device is appropriate or whether you need professional fitting.
Why this deserves a page on a weight-loss site
Because this site has spent a great deal of work telling readers that supplements sold for brain health have thin evidence, and it would be incomplete not to say what does have evidence.
Hearing loss appears consistently among the modifiable risk factors for cognitive decline in the major analyses, and it is one of the larger ones. It is also among the least treated — people commonly wait many years between first noticing difficulty and acting, largely because of cost, stigma and the assumption that it is a normal part of ageing to be tolerated.
The mechanisms proposed include cognitive load — the brain spending resources decoding degraded sound rather than processing meaning — and social withdrawal, which reduces the engagement that supports cognition. Both are plausible and the association is robust.
Whether treating it prevents decline is still being established, and a large trial has produced encouraging results in higher-risk groups. But the case for treating hearing loss on its own terms — for hearing — was always sufficient.
What changed with over-the-counter availability
A regulatory change in 2022 created a category of over-the-counter hearing aids for adults with perceived mild to moderate hearing loss, removing the requirement for a prescription or clinic fitting.
The effect on access was substantial. Traditional clinic-dispensed hearing aids commonly cost several thousand dollars a pair and are frequently not covered by insurance, which put them out of reach for many of the people who needed them.
Self-fitting devices adjusted through an app now cover a meaningful part of that gap at a fraction of the cost. That is a genuine improvement in access rather than a marketing story.
What over-the-counter devices are not for: severe or profound loss, hearing loss in only one ear, sudden loss, or loss accompanied by pain, discharge, dizziness or ringing in one ear. All of those need medical assessment rather than a consumer device.
Practical points before buying
Get your hearing tested. Online screeners give a rough indication; a proper audiogram tells you the shape of your loss, which determines whether a self-fitting device is appropriate.
Check the return period. Adaptation to hearing aids takes weeks — the brain has to relearn processing sounds it has not heard clearly for years, and the first days frequently feel wrong. A return window shorter than that adaptation period is a problem.
Expect an adjustment phase and persist through it. Abandonment in the first fortnight is the most common failure mode, and it is usually adaptation rather than a bad device.
And tell your doctor. Hearing loss can have causes worth identifying, including some that are treatable, and a device addresses the symptom rather than the cause.
Pros and Cons
Strengths
- Addresses a strongly evidenced modifiable risk factor that is badly undertreated
- Discretion is the feature that overcomes the main barrier to treatment
- Substantially cheaper than clinic-dispensed devices
- App-based self-fitting removes the clinic visit barrier
- Over-the-counter availability has genuinely improved access
Drawbacks
- Self-fitting cannot rule out causes requiring medical attention
- Not appropriate for severe loss, one-sided loss or sudden loss
- In-canal designs suit some ear anatomies better than others
- Adaptation takes weeks and abandonment in that window is common
Who Should Pick It — and Who Shouldn't
Good fit
An adult with perceived mild to moderate hearing loss who has had it assessed, wants a discreet device, and will persist through the adaptation period.
Look elsewhere
Anyone with sudden loss, one-sided loss, pain, discharge or dizziness — that needs prompt medical assessment, not a consumer device.
Frequently Asked Questions
Is hearing loss linked to cognitive decline?
It appears consistently among the modifiable risk factors in major analyses and is one of the larger ones, with proposed mechanisms including cognitive load and social withdrawal. Whether treating it prevents decline is still being established, though results in higher-risk groups have been encouraging. The case for treating it in order to hear was always sufficient.
Do I need a prescription for hearing aids?
Not since a 2022 regulatory change created an over-the-counter category for adults with perceived mild to moderate loss. That removed the prescription and clinic-fitting requirement and substantially improved access.
When do I need to see a doctor about my hearing?
Sudden loss, loss in only one ear, pain, discharge, dizziness or ringing in one ear all need prompt medical assessment rather than a consumer device. Some causes are treatable and a device addresses the symptom rather than the cause.
How long does it take to adjust to hearing aids?
Weeks. The brain has to relearn processing sounds it has not heard clearly for years, and the first days frequently feel wrong. Abandonment in the first fortnight is the most common failure and it is usually adaptation rather than a bad device — check the return period covers longer than that.
Considering Eargo?
If you have been putting off doing something about your hearing, the evidence for treating it is stronger than for almost anything sold for brain health. Get tested first.
Product model read from eargo.com on August 25, 2026 and subject to change. Regulatory and risk-factor statements reflect published FDA rulemaking on over-the-counter hearing aids and published research on modifiable dementia risk factors. This page is informational and not medical advice. Rx Saver Hub earns a commission on purchases made through links on this page.