CoQ10
What’s New This Month
- Ubiquinol: In a 2026 trial of 150 healthy adults, ubiquinol raised blood CoQ10 no more than ordinary CoQ10 (ubiquinone) at 200 mg a day. A supplement brand funded the trial. 1
- Exercise: A 2026 review of 24 studies in 613 athletes found no overall benefit for performance or fitness. 2
- Adverse events: FDA’s adverse-event system holds 59 reports since October 2024 naming a CoQ10 product: 19 as a suspect, 40 only alongside other products; none lists a death. These are reports to FDA, which cannot show cause or how often harms happen. 3
- Lawsuit: A lawsuit filed in June 2026 alleges that Qunol Liquid CoQ10’s “superior absorption” claims are false. The case is open; these are allegations only. 4
Overview
Coenzyme Q10 (CoQ10) is a compound your cells use to turn food into energy. It also acts as an antioxidant, which helps protect cells from damage. Your body makes its own, and statin drugs lower the amount in your blood. 5 6
Scientists first isolated CoQ10 in 1957 and worked out its structure in 1958. In the US it is sold as a dietary supplement, not an approved drug. 7
Labels claim it helps the heart, blood pressure, energy, migraine, statin muscle pain, fertility, memory and skin. It comes as ubiquinone or ubiquinol, a form sold as easier to absorb.
How We Researched It
We rate each marketing claim with a modified version of GRADE, the system medical researchers use to say how sure we can be (i.e., high, moderate, low or very low), and check each trial with the Cochrane risk-of-bias tool, which asks whether a study’s design could skew its results. For CoQ10 we appraised 51 records, published mostly from October 2022 to October 2026, plus older landmark trials. We also checked 10 regulators and safety databases, and used two Cochrane reviews.
Research NotesTop three benefits
Heart-Failure Support GRADE: Low
In the Q-SYMBIO trial, 420 people with heart failure took 100 mg three times a day for 2 years; 10% died, versus 18% on a dummy pill. 8 A 2024 review of 32 trials found 36% fewer deaths, but that one trial carries much of the result. 19
Bias check: Q-SYMBIO was funded by CoQ10 makers and has not been repeated. A Cochrane review found no convincing evidence either way. 9
Blood Pressure GRADE: Low
A 45-trial review found the top blood-pressure number fell about 3.4 points. The bottom number did not change. 26
Bias check: Results varied widely between trials, and the effect shrank as more trials were added. A Cochrane review found no meaningful effect. 27
Energy and Fatigue GRADE: Low
A 13-trial review of 1,126 people found fatigue eased a little. 28 A newer 5-trial review found no clear effect on fatigue. 29
Bias check: The effect was below the size most people would notice, and trials mixed very different patient groups.
Benefit Evaluation
| Claim | Claim Verdict | Research Confidence | Supporting Evidence | Safety Risk | Product Quality | FactStack™ Rating |
|---|---|---|---|---|---|---|
| Heart-Failure Support | Promising | Low | Promising | Caution | Within Limits | Caution |
| Blood Pressure | Promising | Low | Promising | Caution | Within Limits | Caution |
| Energy and Fatigue | Promising | Low | Promising | Caution | Within Limits | Caution |
| Mood | Promising | Low | Promising | Caution | Within Limits | Caution |
| Migraine Prevention | Promising | Low | Promising | Caution | Within Limits | Caution |
| Blood Sugar and Lipids | Promising | Low | Promising | Caution | Within Limits | Caution |
| Heart Health and Anti-Aging | TBD | Very Low | TBD | Caution | Within Limits | Caution |
| Statin Muscle Pain | TBD | Very Low | TBD | Caution | Within Limits | Caution |
| Fertility | TBD | Very Low | TBD | Caution | Within Limits | Caution |
| Skin Ageing | TBD | Very Low | TBD | Caution | Within Limits | Caution |
| Lung Health | TBD | Very Low | TBD | Caution | Within Limits | Caution |
| Disease Treatment | TBD | Very Low | TBD | Caution | Within Limits | Caution |
| Memory | Doubtful | Very Low | Doubtful | Caution | Within Limits | Warning |
What Sellers Say vs. What Studies Show
| “Clinically proven for heart health.” | No trial of CoQ10 alone has tested heart outcomes in healthy adults. The heart-failure result leans on one industry-funded trial, and a Cochrane review found no convincing evidence either way. 8 9 |
| “Ubiquinol works better.” | In a 2026 trial of 150 adults, ubiquinol raised blood CoQ10 no more than plain CoQ10. No trial shows better health results. 1 |
| “It fixes statin muscle pain.” | Reviews disagree, and an NIH-funded trial found no benefit. 10 11 |
| “Statins drain 40% of your CoQ10.” | That figure is blood levels in a 30-person study from 1993. In a 2022 trial, supplements did not raise CoQ10 inside muscle. 6 12 |
| “It sharpens your memory.” | A 2026 trial in 111 older adults found no change in memory or mood. 13 |
| “It boosts fertility.” | A registered IVF trial of 100 women found more eggs but no difference in pregnancy. 14 |
Trial ParametersIf you try it
| Who | No marketed health benefit is established for any group. Not a substitute for prescribed heart, blood-pressure or migraine treatment. |
| Dose | Health Canada: 30 to 300 mg a day; 150 to 300 mg a day for migraine, for at least 3 months. 15 |
| Ceiling | Canada and Australia: 300 mg a day; Singapore: 150 mg. Some retail labels list up to 400 mg a serving. 15 16 17 |
| Duration | Judge benefit at 8 to 12 weeks (3 months for migraine) and stop if none. |
| Form | Take with a fat-containing meal; split doses of 100 mg or more. Ubiquinol was no better than ubiquinone in a direct trial. 1 |
| Ask First | Warfarin or blood thinners; chemotherapy or radiation; blood-pressure or diabetes drugs; biliary obstruction; pregnancy or breastfeeding; children 15 and under. |
How to Take It
| Pick a plan | Health Canada lists 30 to 300 mg a day, and 150 to 300 mg a day for migraine. Split doses of 100 mg or more into two. 15 5 |
| Time of day | Morning or midday if it disturbs your sleep. Trouble sleeping is reported at 100 mg a day or more. 5 |
| With food | Yes. Take it with a meal that has some fat; your body needs fat to absorb it. 5 |
| What to expect | You may not feel it. Judge any benefit at 8 to 12 weeks, or 3 months for migraine, and stop if you see none. 15 |
| How to take | Swallow softgels whole with food. If you buy ubiquinol, choose a listing with an independent quality certificate; ConsumerLab reported 24 Amazon ubiquinol products with little or none inside. 18 |
Works With / Don’t Mix With
✓ Works with
A meal with some fat. CoQ10 needs dietary fat to be absorbed. 5
Your prescribed heart, blood-pressure or migraine care. It was studied as an add-on, never as a replacement. 19 9
⚠ Ask first / don’t mix
Warfarin and other blood thinners. Health Canada says to ask a practitioner first above 100 mg a day, and Australia and Singapore require the label warning “Do not take while on warfarin therapy without medical advice.” Get an INR blood test after starting or stopping. 15 17
Chemotherapy or radiation. No trial shows it is safe during cancer treatment. Ask your cancer doctor first. 7
Blood-pressure or diabetes drugs. Health Canada says to ask first if you take blood-pressure medication; NCCIH notes a possible interaction with insulin. 15 20
Manufacturer Recalls & WarningsLast 36 months, newest first
| Date | Maker / Brand | Product | Action | Src |
|---|---|---|---|---|
| Jun 2026 | Quten Research Institute, LLC; Sanofi-Aventis U.S. LLC | Qunol Liquid CoQ10 | A lawsuit alleges the “superior absorption” claims are false. The case is open; allegations only, not a finding. | 4 |
| Oct 2025 | GenoGenix LLC (Boca Raton, FL) | CoQ10 for Injection, all strengths | FDA Class II recall D-0072-2026: lack of sterility assurance. A compounded injection, not an oral supplement. | 21 |
| Aug 2025 | Natural Kangchen (Longyan) Bio-Technology Co. Ltd (China) | ZEBORA CoQ10 200 mg with Resveratrol | FDA Import Alert 45-02: colour additives not permitted in the US. Detention at the border, not a recall. | 22 |
| Apr 2025 | Bio-Gen Milchserum Marketing GmbH (Germany) | “Q10 Plus” | FDA Import Alert 54-14: supplement manufacturing-practice problems. Detention at the border, not a recall. | 23 |
Where to Buy
We compare products side-by-side not just on price, but on whether NSF lists the product as NSF/ANSI 173 Contents Certified (an independent lab confirms the label matches the contents), whether it is NSF Certified for Sport, whether USP lists it as USP Verified, and whether the seller says it is manufactured in the USA. We leave out a brand’s products for this supplement when, in the last 36 months, the FDA took action against that brand over this supplement (a Class I or II recall, a warning letter, an import alert or an advisory letter). We also leave out any brand with an FDA Class II recall or warning letter on any product. We also leave out any product named in a California Prop 65 notice or a non-US recall, along with that brand’s products of the same ingredient and form. Brands with other actions stay listed and are marked in the Recall Screen column. Our goal remains to provide you, the Consumer, with the information and data necessary to make an informed purchasing decision. Prices reflected below are static and subject to change.
Ratings above describe the ingredient’s research, not any product listed below.
| # | Retailer | Product | Price | NSF 173 | NSF Sport | USP | Mfg. in USA (per seller) | Recall Screen | Affiliate link |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Amazon | Momentous Ubiquinol CoQ10, 100 mg, Plant-Based Softgels | Check Price | ✓ | ✓ | ✓ | ✓ | View on Amazon ↗ | |
| 2 | Amazon | Nature Made CoQ10 200 mg, 80 Softgels | Check Price | ✓ | ✓ | ✓ | View on Amazon ↗ | ||
| 3 | iHerb | Codeage, Liposomal CoQ10, 60 Vegetable Capsules | $34.99 | ✓ | ✓ | ✓* | View on iHerb ↗ | ||
| 4 | iHerb | Thorne, CoQ10, 100 mg, 60 Gelcaps | $53.00 | ✓ | ✓ | ✓* | View on iHerb ↗ | ||
| 5 | Amazon | Theralogix NeoQ10 Coenzyme Q10, 90 Softgels | Check Price | ✓ | ✓ | ✓ | View on Amazon ↗ | ||
| 6 | iHerb | California Gold Nutrition, CoQ10, 100 mg, 30 Veggie Softgels | $7.78 | ✓ | ✓* | View on iHerb ↗ | |||
| 7 | Green's Nutrition | Nutricost CoQ10 Capsules 30 Count | $10.99 | ✓ | ✓* | View on Green's Nutrition ↗ | |||
| 8 | HerbsPro | Solaray, CoQ10, 100 mg, 30 Caps | $11.29 | ✓ | ✓ | View on HerbsPro ↗ | |||
| 9 | HerbsPro | Now Foods, CoQ10, 30 Mg, 120 Veg Caps | $12.27 | ✓ | ✓* | View on HerbsPro ↗ | |||
| 10 | Green's Nutrition | Bluebonnet Nutrition Cellular Active Coq10 Ubiquinol 30 Veg Softgels | $19.95 | ✓ | ✓* | View on Green's Nutrition ↗ |
Sources
1. D’Adamo et al. Ubiquinone, ubiquinol and geranylgeraniol: randomized trial of blood CoQ10 (150 adults; NCT06640465). Journal of Nutrition and Metabolism 2026:5589963, 2026. pubmed.ncbi.nlm.nih.gov/42807157/
2. Lu et al. CoQ10 in athletes: systematic review and meta-analysis (24 studies, 613 athletes). 3 Biotech 16(10):445, 2026. pubmed.ncbi.nlm.nih.gov/42798689/
3. CAERS adverse event reports naming a CoQ10 product, 3 Oct 2024 to 3 Oct 2026: 59 reports across the terms coq10, co q10, coq-10, coenzyme, ubiquinol and ubiquinone (query shown for coq10). US Food and Drug Administration (openFDA food adverse events), data to 30 Mar 2026. api.fda.gov/food/event.json?search=products.name_brand:coq10+AND+date_created:[20241003+TO+20261003]&limit=100
4. Rivers v. Chattem, Inc., No. 2:26-cv-07123 (class action over Qunol Liquid CoQ10 absorption claims). US District Court, District of New Jersey (CourtListener docket), filed 15 Jun 2026. www.courtlistener.com/docket/73486650/rivers-v-chattem-inc/
5. Sood B, Patel P, Keenaghan M. Coenzyme Q10. StatPearls, NCBI Bookshelf, updated 30 Jan 2024. www.ncbi.nlm.nih.gov/books/NBK531491/
6. Ghirlanda G et al. Statin drugs and blood CoQ10 levels (30 people). Journal of Clinical Pharmacology, 1993. pubmed.ncbi.nlm.nih.gov/8463436/
7. Coenzyme Q10 (PDQ®): Health Professional Version. National Cancer Institute, updated Feb 2026. www.cancer.gov/about-cancer/treatment/cam/hp/coenzyme-q10-pdq
8. Mortensen SA et al. Q-SYMBIO randomized trial of CoQ10 in chronic heart failure (420 patients). JACC: Heart Failure, 2014. doi.org/10.1016/j.jchf.2014.06.008
9. Al Saadi T et al. Coenzyme Q10 for heart failure. Cochrane Database of Systematic Reviews CD008684.pub3, 2021. doi.org/10.1002/14651858.CD008684.pub3
10. Kovacic S, Habicht SD, Eckert GP. Meta-analysis of CoQ10 for statin-associated muscle pain (7 RCTs). Journal of Nutritional Science 14:e72, 2025. doi.org/10.1017/jns.2025.10043
11. Taylor BA et al. Randomized trial of ubiquinol for statin muscle symptoms. Atherosclerosis, 2015. doi.org/10.1016/j.atherosclerosis.2014.12.016
12. Randomized trial of CoQ10 and muscle CoQ10 levels in statin users (37 people). Antioxidants 11(9):1698, 2022. doi.org/10.3390/antiox11091698
13. Nankivell et al. Randomized trial of ubiquinol 200 mg in older adults (111 people). Antioxidants 15(7):806, 2026. pubmed.ncbi.nlm.nih.gov/42510537/
14. Abdelrahman et al. Randomized trial of CoQ10 before IVF (100 women; NCT06405204). PubMed record, 2026. pubmed.ncbi.nlm.nih.gov/41800295/
15. Natural Health Products monograph: Coenzyme Q10 (UBIQUINONE-10). Health Canada, 31 Jan 2025. webprod.hc-sc.gc.ca/nhpid-bdipsn/atReq?atid=coenzyme.q10&lang=eng
16. Therapeutic Goods (Permissible Ingredients) Determination: ubidecarenone and ubiquinol-10, at most 300 mg a day, with a warfarin warning. Therapeutic Goods Administration (Australia), compilation 17 Sep 2026. www.tga.gov.au/resources/legislation/therapeutic-goods-permissible-ingredients-determination
17. Guidelines on prohibited and restricted ingredients in health supplements and traditional medicines (GL-CHPB-1-012), item 30: Coenzyme Q10. Health Sciences Authority (Singapore), Oct 2025. file.go.gov.sg/hsa-chp-prohibited-restricted-ing-guidelines.pdf
18. CoQ10 and Ubiquinol Supplements Review, and Amazon ubiquinol alert (24 products). ConsumerLab.com, updated 1 Oct 2026; alert 20 Jul 2026. www.consumerlab.com/
19. Xu et al. Meta-analysis of CoQ10 in heart failure (32 RCTs, 3,763 patients). BMC Cardiovascular Disorders 24(1):592, 2024. doi.org/10.1186/s12872-024-04232-z
20. Coenzyme Q10. National Center for Complementary and Integrative Health, updated Jan 2019. www.nccih.nih.gov/health/coenzyme-q10
21. Drug recall D-0072-2026: CoQ10 for Injection, GenoGenix LLC (Class II, lack of assurance of sterility). US Food and Drug Administration (openFDA drug enforcement), 15 Oct 2025. api.fda.gov/drug/enforcement.json?search=recall_number:%22D-0072-2026%22
22. Import Alert 45-02: detention of foods containing illegal or undeclared colours (Natural Kangchen, ZEBORA CoQ10 200 mg with Resveratrol). US Food and Drug Administration, added 28 Aug 2025. www.accessdata.fda.gov/cms_ia/importalert_118.html
23. Import Alert 54-14: dietary supplements from firms that have not met dietary supplement GMP (Bio-Gen Milchserum, Q10 Plus). US Food and Drug Administration, added 15 Apr 2025. www.accessdata.fda.gov/cms_ia/importalert_741.html
24. Warning letters database, searched “coq10”, “coenzyme q10” and “ubiquinol” (newest letter 14 Nov 2022). US Food and Drug Administration, 3 Oct 2026. www.fda.gov/inspections-compliance-enforcement-and-criminal-investigations/compliance-actions-and-activities/warning-letters
25. Proposition 65 60-day notice search: coq10, coenzyme, ubiquinol, Q10 (no notices). California Office of the Attorney General, 3 Oct 2026. oag.ca.gov/prop65/60-day-notice-search
26. Karimi et al. Meta-analysis of CoQ10 and blood pressure (45 RCTs). International Journal of Cardiology Cardiovascular Risk and Prevention 26:200424, 2025. doi.org/10.1016/j.ijcrp.2025.200424
27. Ho MJ et al. Coenzyme Q10 for primary hypertension. Cochrane Database of Systematic Reviews CD007435.pub3, 2016. doi.org/10.1002/14651858.CD007435.pub3
28. Meta-analysis of CoQ10 and fatigue (13 RCTs, 1,126 people). Frontiers in Pharmacology, 2022. pubmed.ncbi.nlm.nih.gov/36091835/
29. Magalhães et al. Meta-analysis of CoQ10 for depressive symptoms and fatigue (5 RCTs). Journal of Clinical Psychopharmacology, 2026. doi.org/10.1097/JCP.0000000000002112
