Does CoQ10 Make Your Ears Ring? Exploring the Link Between Coenzyme Q10 and Tinnitus

October 4, 2025 •

4 min read

While some people fear that supplements cause side effects, a growing body of research suggests that Coenzyme Q10 (CoQ10) is more likely to alleviate the symptoms of tinnitus, not cause them. Tinnitus, or ringing in the ears, is a symptom often associated with underlying conditions like age-related hearing loss or ear injuries, and some evidence points to CoQ10 as a potential supportive therapy.

Quick Summary

Studies indicate Coenzyme Q10 is generally well-tolerated and is not a known cause of tinnitus. In fact, research shows that CoQ10 supplementation can actually decrease the severity and loudness of tinnitus in some individuals, particularly those with low baseline levels of the enzyme. Potential mechanisms include its antioxidant properties and support for mitochondrial energy production in ear cells.

Key Points

Does not cause tinnitus: Scientific research does not support the idea that CoQ10 makes ears ring; in fact, it is studied for its potential to relieve symptoms.
Potential benefits for ear health: CoQ10's antioxidant properties may protect inner ear hair cells from damage caused by oxidative stress, a factor implicated in some cases of tinnitus.
Supports mitochondrial function: As a key component in cellular energy production, CoQ10 ensures inner ear hair cells have sufficient energy to function correctly, potentially reducing tinnitus.
Mild side effects possible: Common side effects of CoQ10 are typically mild and gastrointestinal in nature, including nausea and upset stomach. They do not involve tinnitus.
Best absorbed with food: To maximize its effectiveness, CoQ10 should be taken with a meal containing some dietary fat, as it is a fat-soluble compound.
Not a guaranteed cure: While promising for some individuals, particularly those with low baseline CoQ10 levels, it is not a universally effective cure for tinnitus, which has many potential causes.
Consult a healthcare provider: It is crucial to consult a doctor to determine the root cause of tinnitus and the appropriate treatment plan, which may or may not include CoQ10 supplementation.

What is CoQ10?

Coenzyme Q10 (CoQ10) is a potent antioxidant that the human body produces naturally. Its primary function is to play a central role in the production of energy within cells, specifically within the mitochondria. As an antioxidant, it also helps protect cells from damage caused by harmful free radicals, a process known as oxidative stress. Although the body produces CoQ10, its levels tend to decrease with age and can be affected by certain health conditions or medications. As a result, many people turn to dietary supplements to maintain adequate levels, supporting various bodily functions, from heart health to cellular energy production.

The Relationship Between CoQ10 and Tinnitus

Scientific evidence does not support the idea that CoQ10 causes tinnitus. On the contrary, several studies have explored its potential to relieve tinnitus symptoms, particularly in patients with age-related hearing issues.

Oxidative Stress: Some research suggests that oxidative stress and mitochondrial dysfunction may play a role in the development of certain types of tinnitus, especially those linked to sensorineural hearing loss. As a powerful antioxidant, CoQ10 may help combat this cellular damage in the inner ear.
Energy Supply: The delicate hair cells in the inner ear, which are crucial for hearing, rely on a steady supply of energy. CoQ10, being central to mitochondrial energy production, can help ensure these cells have enough energy to function correctly, potentially mitigating some tinnitus symptoms.
Blood Flow: Certain micronutrients, including CoQ10, can support healthy blood flow to the cochlea, the snail-shaped auditory part of the inner ear. Improved circulation can benefit the health of the vital hair cells and reduce the effects of tinnitus.

Can CoQ10 Worsen Tinnitus? Rare Side Effects to Consider

While the main body of evidence points to CoQ10 as potentially beneficial for tinnitus, it is important to be aware of the range of potential side effects, though none specifically include causing or worsening tinnitus. Common side effects are generally mild and include:

Stomach problems (nausea, diarrhea, upset stomach)
Headaches
Trouble sleeping
Fatigue
Dizziness
Irritability

These side effects are typically linked to individual sensitivity. Taking the supplement with food can often help minimize digestive issues. If you experience any persistent or bothersome side effects, it is recommended to speak with a healthcare professional.

Comparison of Tinnitus-Related Supplements


Supplement	Primary Mechanism	Evidence for Tinnitus	Caveats/Side Effects
CoQ10	Antioxidant, boosts cellular energy in the inner ear, improves blood flow.	Modest evidence suggests benefit, particularly for those with low CoQ10 levels. Studies show potential to reduce tinnitus severity and improve sleep.	Generally safe with mild, infrequent side effects (digestive issues, insomnia). Results may vary depending on underlying cause.
Ginkgo Biloba	Improves blood circulation.	Mixed results, with some studies showing benefit for circulation-related tinnitus, while others show no significant effect.	Can interact with blood thinners. Mild side effects possible.
Magnesium	Regulates blood vessel tension, protects nerve cells.	Some studies suggest benefit, especially for noise-induced hearing loss and low magnesium levels.	Can cause digestive issues in high amounts. Must be taken carefully.
Zinc	Antioxidant properties.	Studies indicate it may help reduce tinnitus and some forms of hearing loss.	High amounts can cause copper deficiency. Should be taken under medical supervision.

How to Choose a CoQ10 Supplement

When selecting a CoQ10 supplement, it is helpful to consider a few factors to maximize its effectiveness and safety:

Ubiquinol vs. Ubiquinone: CoQ10 is available in two forms: ubiquinone and ubiquinol. Ubiquinol is the active, more readily absorbed form, while ubiquinone is the oxidized form that the body must convert to ubiquinol. For some people, particularly older adults, ubiquinol may be a better option due to potentially decreased conversion efficiency with age.
Take with Food: As a fat-soluble compound, CoQ10 is absorbed best when taken with a meal that contains some fat. This simple practice can significantly enhance its bioavailability and effectiveness.
Dosage: Appropriate levels can vary based on individual needs and health goals. Always consult a healthcare provider to determine what is right for your needs.
Reputable Brands: Since the supplement industry is not strictly regulated by the FDA in the same way as medications, choosing a reputable, third-party tested brand is essential to ensure product quality, purity, and accuracy.

Conclusion

Based on available research, CoQ10 does not cause ears to ring; instead, it is often explored as a potential therapeutic agent for managing tinnitus symptoms, particularly those related to oxidative stress and low CoQ10 levels. Its antioxidant and energy-boosting properties can support the health of delicate inner ear cells, which may help mitigate the perception of ringing. While the evidence is not conclusive for all cases, and individual results may vary, CoQ10 remains a supplement of interest in the realm of auditory health. Individuals experiencing tinnitus should consult with a healthcare professional to identify the root cause and determine the most appropriate course of action.

Helpful Resources

For more comprehensive information on tinnitus causes, management, and treatment options, the American Tinnitus Association provides a wealth of authoritative resources: https://www.ata.org/

Frequently Asked Questions

No, research does not indicate that CoQ10 causes tinnitus. In fact, multiple studies have explored and found potential benefits for individuals with tinnitus, suggesting it may help alleviate the condition rather than cause it.

CoQ10's potential benefits for tinnitus are linked to its antioxidant properties and its role in cellular energy production. It may help protect the delicate hair cells in the inner ear from oxidative damage and ensure they have enough energy to function properly.

The most common side effects are mild and may include digestive issues like nausea, diarrhea, and stomach upset. While higher amounts might lead to insomnia in some individuals, serious side effects are rare.

CoQ10 is available as either ubiquinol or ubiquinone. Ubiquinol is the pre-converted, active form that is more readily absorbed by the body, which might be a better option for older adults or those with impaired absorption.

Pregnant or breastfeeding women, individuals on blood-thinning medication like warfarin, and people undergoing certain cancer treatments should consult a healthcare provider before taking CoQ10. It's always best to consult with a doctor to ensure safe usage.

The timeframe for experiencing an effect can vary greatly among individuals. Some studies have shown effects after several weeks or months, while others show no overall effect, depending on the cause and individual's baseline CoQ10 levels.

As with any supplement, you should always consult your healthcare provider before combining CoQ10 with other treatments, especially if you are taking prescription medications. This ensures there are no potential interactions or contraindications.