Cortexi Review 2026: Brain and Hearing Supplement That Works?

Affiliate Disclosure: This article contains affiliate links. If you purchase Cortexi through our links, we may earn a commission at no extra cost to you. This does not influence our ratings or analysis. We are committed to honest, evidence-based reviews.

FDA Disclaimer: 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. Consult your physician before starting any supplement regimen. If you are experiencing hearing loss, see an audiologist or ENT specialist for proper evaluation.

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Quick Verdict

Rating	2.5/10
Price	$49-$69/bottle depending on package
Key Claim	Supports brain health and hearing clarity
Guarantee	60 days
Sold Via	ClickBank
Our Take	A generic antioxidant and nootropic blend relabeled as a hearing supplement. None of the ingredients have been shown in human trials to improve hearing or reduce tinnitus. If you want cognitive support, there are better nootropics. If you have hearing issues, see a doctor.

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What Is Cortexi?

Cortexi is a liquid drop supplement sold through ClickBank that straddles two markets: brain health and hearing support. The marketing claims the formula supports “360-degree hearing,” mental sharpness, and cognitive function by delivering antioxidants and neuroprotective compounds to the auditory system.

Like Quietum Plus (reviewed separately), Cortexi targets the hearing health market — one of the supplement industry’s most predatory niches. The American Academy of Otolaryngology has repeatedly stated that no dietary supplement has been clinically proven to improve hearing or treat tinnitus.

Cortexi’s ingredient list reads more like a standard nootropic supplement than a hearing-specific formula. That is because it essentially is one — the hearing angle appears to be a marketing repackaging rather than a scientifically driven formulation.

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Key Ingredients

Grape Seed Extract

A potent source of proanthocyanidins (antioxidants). A meta-analysis found grape seed extract reduced systolic blood pressure and heart rate (PMID: 27012358). Some in vitro studies suggest otoprotective effects — protecting auditory cells from oxidative damage in lab settings — but no human clinical trial has demonstrated that oral grape seed extract prevents or improves hearing loss.

Green Tea Extract (EGCG)

A well-studied antioxidant (see our CitrusBurn review). Evidence for weight management and cardiovascular health exists, but hearing-specific clinical evidence does not. One animal study found EGCG protected cochlear hair cells from noise-induced damage in guinea pigs (PMID: 19887068), but this has not been replicated in humans.

Gymnema Sylvestre

Primarily a blood sugar ingredient (see our Sugar Defender and Amiclear reviews). Its inclusion in a hearing supplement is baffling. There is no published research connecting gymnema to auditory function.

Capsicum Annuum (Capsaicin)

A thermogenic compound (see our CitrusBurn review). The purported connection to hearing is through improved circulation, which is an extremely tenuous claim. No clinical evidence for hearing benefits.

Panax Ginseng

An adaptogen with evidence for cognitive function and energy. A systematic review found some evidence for improved cognitive performance, particularly working memory and reaction time (PMID: 28531464). This is the one ingredient where the “brain health” claim has some support — but not at the doses possible in a liquid drop blend, and with no hearing-specific evidence.

Astragalus

Traditional Chinese medicine herb with immune-modulating and adaptogenic properties. No clinical evidence for hearing improvement.

Chromium Picolinate

A blood sugar support mineral. Its inclusion in a brain/hearing supplement makes no pharmacological sense unless the formula is simply repackaging common supplement ingredients regardless of relevance.

Maca Root

An adaptogen primarily studied for energy and libido. No hearing or cognitive evidence at clinical significance levels.

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How It Works

The marketing claims Cortexi works by:

1. Delivering antioxidants to the auditory nerve and brain
2. Reducing oxidative stress that damages cochlear hair cells
3. Improving blood flow to the ear through vasodilatory effects
4. Supporting neurotransmitter function for “clearer” auditory processing

Let me address each:

1. Antioxidant delivery to auditory nerves: While systemic antioxidants theoretically reach all tissues, there is no evidence that oral antioxidant supplementation produces concentrations high enough in the inner ear to protect or repair auditory cells.

2. Oxidative stress and hair cells: Cochlear hair cells in humans do not regenerate once damaged. No supplement can repair dead hair cells. Antioxidant protection is a preventive theory, not a restoration mechanism.

3. Blood flow to the ear: Some ingredients may mildly improve general circulation, but no clinical trial has demonstrated that improved ear blood flow from these supplements translates to hearing improvement.

4. Neurotransmitter support: This is generic nootropic language applied to hearing. The auditory processing pathway is far more complex than simple neurotransmitter levels.

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Pros and Cons

Pros

• Grape seed extract and green tea are genuine antioxidants with health benefits
• Ginseng has some cognitive support evidence (for the brain health claim, not hearing)
• Liquid format for convenience
• 60-day money-back guarantee

Cons

• Zero ingredients with clinical evidence for improving hearing in humans
• Marketing claims about hearing restoration are irresponsible
• Gymnema, chromium, and capsaicin have no logical connection to hearing health
• Proprietary blend with hidden doses
• $49-69 for generic antioxidants available for a fraction of the cost
• Could dangerously delay proper audiological evaluation
• Ingredient list looks like a random nootropic, not a hearing-specific formula

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Pricing

Package	Per Bottle	Total	Shipping
1 Bottle (30 days)	~$69	~$69	+ Shipping
3 Bottles (90 days)	$59	$177	Free
6 Bottles (180 days)	$49	$294	Free

For Brain Health (What the Ingredients Actually Support)

If you want cognitive support from evidence-backed ingredients:

• Lion’s Mane Mushroom (500mg, the most evidence-backed nootropic mushroom): ~$0.30/day
• Bacopa Monnieri (300mg, studied for memory): ~$0.20/day
• Omega-3 DHA (1000mg, the most evidence-backed brain nutrient): ~$0.30/day
• Total: ~$0.80/day for ingredients with actual cognitive evidence, vs. $1.63-2.30/day for Cortexi

For Hearing Health

See an audiologist. There is no supplement shortcut.

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Cortexi vs. Quietum Plus

Since both target the hearing supplement market:

Feature	Cortexi	Quietum Plus
Format	Liquid drops	Capsules
Key Ingredients	Grape seed, green tea, ginseng	Mucuna, ashwagandha, zinc
Has Zinc	No	Yes
Hearing Evidence	None	Zinc only (for deficiency)
Guarantee	60 days	60 days
Our Rating	2.5/10	2.5/10

Neither is recommended for hearing health. If forced to choose, Quietum Plus at least contains zinc, which has evidence for tinnitus in zinc-deficient individuals.

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Our Verdict

Rating: 2.5/10

Cortexi is a standard antioxidant/nootropic blend that has been remarketed as a hearing supplement. Its ingredients have nothing special to offer auditory health that a multivitamin or quality antioxidant supplement would not provide — at a fraction of the cost.

The hearing health supplement market is built on desperation. Hearing loss is progressive, often irreversible, and has enormous impacts on quality of life. People will try anything, and the supplement industry knows it. Cortexi exploits this by repackaging cheap, generic ingredients with hearing health marketing.

If you are experiencing hearing loss or tinnitus:

1. See an audiologist. Many causes of hearing loss are treatable (earwax, infections, medication side effects, otosclerosis).
2. If you have noise-induced hearing loss, hearing aids are more effective than any supplement and covered by many insurance plans.
3. If zinc deficiency is suspected, a $5 zinc supplement addresses this more directly.
4. If you want general antioxidant support, a quality grape seed extract or green tea supplement costs $10-15/month, not $69.

No oral supplement has been shown to restore hearing or reliably reduce tinnitus. Any product claiming otherwise is misrepresenting the science.

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Last updated: March 7, 2026. This review is based on publicly available information and published clinical research. We will update if new evidence emerges.