Cerebrozen Review: What It Is, What the Evidence Says, and Who Should Be Careful
Last updated: October 12, 2026. This is an independent review, not the manufacturer’s website.
- What it is: Cerebrozen is a liquid dietary supplement, taken with a dropper, marketed for tinnitus (ringing in the ears), hearing and brain support.
- Directions (per the seller): one dropper in the morning before breakfast and one before lunch.
- Price: listed at $49 per bottle at the time of writing, with multi-bottle bundles. Confirm current pricing on the seller’s checkout page.
- Guarantee: 60-day money-back guarantee handled by the seller.
- Evidence: we did not find an independent clinical trial of the finished product. Tinnitus has no proven cure, and the seller’s claims that it eliminates tinnitus or regrows inner-ear cells are not supported by evidence we could find.
- Not a drug: it is a supplement. The FDA has not evaluated its claims or approved it to treat tinnitus.
Tinnitus is common, frustrating and often poorly understood, which makes it a magnet for bold marketing. This page explains what Cerebrozen contains, how its ingredients line up with the research, how it compares with options that have better evidence, and what to check before buying.
Check Current PriceWhat is Cerebrozen?
Cerebrozen is a flavored liquid blend of vitamins, minerals, amino-acid compounds and plant extracts. The seller says it calms overactive hearing pathways in the brain and supports the inner ear. The marketing refers to NASA-inspired research, but we could not find published NASA work that supports this specific product, so that description cannot be independently verified.
Understanding tinnitus first
Tinnitus is the perception of sound, such as ringing, buzzing or hissing, without an external source. It is commonly estimated to affect around one in ten adults. It is a symptom, not a disease, and common causes include noise exposure, age-related hearing loss, earwax, ear infections, some medicines, jaw problems and stress. Because the cause differs from person to person, no single supplement can be expected to work for everyone.
In humans, the sensory hair cells of the inner ear do not regrow once lost, so claims of “regenerating” them deserve strong skepticism.
How Cerebrozen is said to work
The seller describes a three-part idea: calming over-active signals in the brain’s hearing centers (credited mainly to GABA), supporting blood flow and nerve health (ginkgo, vinpocetine, magnesium), and protecting cells from oxidative stress (CoQ10, glutathione, selenium). These are the manufacturer’s explanations. We found no published study showing that the finished formula reduces tinnitus loudness or improves measured hearing.
Ingredients and what research suggests
The ingredient list we reviewed does not state the amount of each ingredient per dose, which makes it hard to compare with doses used in studies.
| Ingredient | Marketed role | What research suggests |
|---|---|---|
| GABA | Calms overactive neurons | Taken by mouth, it is not clearly shown to reach the brain in meaningful amounts. No solid trials in tinnitus. |
| Ginkgo biloba | Blood flow to the ears | A Cochrane review found no clear evidence that ginkgo helps tinnitus. It can interact with blood-thinning medicines. |
| Vinpocetine | Brain blood flow, memory | Limited human evidence. It has drawn regulatory scrutiny in the US and is generally advised against in pregnancy. Ask a pharmacist. |
| Magnesium | Nerve health, noise protection | Research on magnesium and hearing or tinnitus is small and mixed. |
| CoQ10, glutathione, selenium | Antioxidant support | Antioxidants are widely studied for general health. Evidence that they relieve established tinnitus is weak. |
| Alpha-GPC, lion’s mane | Memory and cognition | Small studies on cognition; none we found on tinnitus. |
| Fermented brown rice, sodium, potassium | Carrier and electrolytes | Supporting ingredients rather than active tinnitus treatments. |
How Cerebrozen compares with other options
| Option | What to know |
|---|---|
| Hearing test with an audiologist or ENT | The right first step. It finds treatable causes such as earwax, infection or hearing loss. |
| Hearing aids (if hearing loss is present) | Often reduce how noticeable tinnitus is, because they restore outside sound. |
| Cognitive behavioral therapy and sound therapy | Among the best-supported approaches for reducing how much tinnitus bothers you, though they do not remove the sound. |
| Reviewing medicines, jaw problems, noise exposure | Some medicines and conditions contribute to tinnitus and can be addressed with a clinician. |
| Supplements, including Cerebrozen | Limited and inconsistent evidence. Check interactions before use. |
Realistic expectations
The seller suggests 90 days or more of daily use. If you try it, set a clear check-in: rate your tinnitus loudness and distress from 0 to 10 weekly. Do not stop prescribed treatment, and do not delay a hearing test while waiting for a supplement to work.
Talk to a doctor or pharmacist first if…
- You take blood thinners, blood-pressure, seizure or psychiatric medicines.
- You are pregnant, nursing or planning pregnancy.
- You have kidney disease, a bleeding disorder or a scheduled surgery.
- Your tinnitus is new, one-sided, pulsing or linked to hearing loss or dizziness.
Price, guarantee and buying
At the time of writing, one bottle is listed at $49, with 3- and 6-bottle bundles. The seller also shows a higher “regular price”, which we could not verify as a historical price. The 60-day money-back guarantee, shipping and billing are handled by the seller, so read the refund policy and keep your order number. Questions can be sent through the contact page.
See Bundles on the Seller’s SitePros and cons
Pros
- Simple dropper routine
- Non-prescription
- 60-day refund window
- Contains some well-known nutrients
Cons
- No independent trial of the finished product found
- Ingredient amounts not stated
- Possible medicine interactions
- Does not replace a hearing evaluation
Frequently asked questions
Can Cerebrozen cure tinnitus?
There is no proven cure for most tinnitus, and we found no evidence that Cerebrozen eliminates it.
Is Cerebrozen FDA approved?
No. The FDA does not approve dietary supplements before sale. The seller says it is made in an FDA-registered facility, which is not product approval.
How long should I take it before judging results?
The seller suggests at least 90 days. Track your symptoms in writing so you can judge fairly.
Are there side effects?
Possible effects include stomach upset, headache or allergic reactions, and some ingredients interact with medicines. Stop use and seek advice if you feel unwell.
How do I get a refund?
Contact the seller within 60 days of purchase using the details on the contact page.