Last update
4/2/2026

Overview

SCIENTIFIC SCORE
Possibly Effective
Based on 5 Researches
7
USERS' SCORE
Good
Based on 22 Reviews
8.2
Supplement Facts
Serving Size:  1 Veggie Capsule
Serving Per Container:  60
Amount Per Serving
%DV
Coenzyme Q10 (Ubiquinone)
200 mg
 †
Black Pepper Ext. (Piper nigrum) (fruit) (standardized to contain 95% Piperine) (BioPerine®)
5 mg
 †
📅 Last updated:

Top Medical Research Studies

9
CoQ10 reduces post-heart attack complications significantly
A randomized, double-blind placebo-controlled trial compared 120 mg daily of coenzyme Q10 to placebo over 28 days in 144 heart attack patients. Those receiving CoQ10 experienced significantly fewer cases of chest pain, heart rhythm problems, and poor heart function compared to the placebo group. Importantly, major cardiac events—including heart deaths and repeat heart attacks—dropped to 15% with CoQ10 versus 31% with placebo.

We observed that CoQ10 treatment enhanced the body's natural antioxidant defenses and reduced markers of cellular damage. These results suggest CoQ10 may offer rapid protection when given shortly after a heart attack, though larger studies with longer follow-up are needed to fully confirm these encouraging findings.
Read More
8
CoQ10 supplementation improved angina symptoms safely
We evaluated how coenzyme Q10 helps patients with heart disease. Patients with stable angina (chest pain from reduced heart blood flow) received 60 mg of coenzyme Q10 daily for 8 weeks alongside their regular medications. The results were encouraging—those who added coenzyme Q10 to their treatment experienced significant improvement in their symptoms without experiencing serious side effects.
Read More
7
CoQ10 improves exercise tolerance in angina
We evaluated CoQ10's effects on 12 angina patients using a rigorous double-blind, placebo-controlled crossover study with treadmill testing. Participants received 150 mg daily for 4 weeks.

CoQ10 significantly improved exercise capacity: patients exercised 61 seconds longer and reached ST-segment depression (a key heart stress indicator) 88 seconds later compared to placebo. The improvements correlated directly with blood CoQ10 levels.

While anginal attacks and nitroglycerin use trended downward, these reductions weren't statistically significant. The supplement was well-tolerated with minimal side effects, suggesting CoQ10 is a safe option for angina patients seeking to improve physical endurance.
Read More

Most Useful Reviews

9
Reduced chest pain
43 people found this helpful
CoQ10 is essential for energy production in our cells and helps the heart pump blood effectively. After starting on 200 mg daily for heart issues, I noticed a significant improvement. By the third day, I had less chest pain and was able to stop taking Corvalol. My skin became smoother and my face tone evened out.
Read More
8
Less chest pain
20 people found this helpful
Coenzyme Q10 is vital for energy and is crucial for the heart. After a month of giving it to my 79-year-old father, his chest pain has reduced significantly, and he feels much healthier. He used to often complain of pressure surges, but now it’s much less frequent.
Read More
8.5
Supports heart health
7 people found this helpful
This product is remarkable, becoming essential for my natural supplement regimen to combat minor to moderate cardiac symptoms. Despite my chest pain history and other cardiac issues, I feel healthy. Doctors may dislike my choice to avoid invasive procedures, but I believe in taking control of my own health. My supplements, especially this one, have enabled me to lead a normal and active life. I would not want to be without it.
Read More

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Medical Researches

SCIENTIFIC SCORE
Possibly Effective
Based on 5 Researches
7
  • All Researches
9
CoQ10 reduces post-heart attack complications significantly
A randomized, double-blind placebo-controlled trial compared 120 mg daily of coenzyme Q10 to placebo over 28 days in 144 heart attack patients. Those receiving CoQ10 experienced significantly fewer cases of chest pain, heart rhythm problems, and poor heart function compared to the placebo group. Importantly, major cardiac events—including heart deaths and repeat heart attacks—dropped to 15% with CoQ10 versus 31% with placebo.

We observed that CoQ10 treatment enhanced the body's natural antioxidant defenses and reduced markers of cellular damage. These results suggest CoQ10 may offer rapid protection when given shortly after a heart attack, though larger studies with longer follow-up are needed to fully confirm these encouraging findings.
Read More
8
CoQ10 supplementation improved angina symptoms safely
We evaluated how coenzyme Q10 helps patients with heart disease. Patients with stable angina (chest pain from reduced heart blood flow) received 60 mg of coenzyme Q10 daily for 8 weeks alongside their regular medications. The results were encouraging—those who added coenzyme Q10 to their treatment experienced significant improvement in their symptoms without experiencing serious side effects.
Read More
7
CoQ10 reduces oxidative stress in effort angina
We examined how the body's stress response affects patients experiencing effort-induced chest pain (angina). Patients showed increased harmful oxygen molecules from immune cells, higher levels of oxidative damage markers, and reduced natural antioxidant defenses—worsening with disease severity.

When coenzyme Q10 was added to standard chest pain medications, it reduced the harmful oxygen production, decreased oxidative damage to fats in the blood, and restored the body's protective antioxidant capacity. This biochemical improvement translated into real clinical benefits, with patients experiencing meaningful relief from effort-induced chest pain.
Read More
7
CoQ10 improves exercise tolerance in angina
We evaluated CoQ10's effects on 12 angina patients using a rigorous double-blind, placebo-controlled crossover study with treadmill testing. Participants received 150 mg daily for 4 weeks.

CoQ10 significantly improved exercise capacity: patients exercised 61 seconds longer and reached ST-segment depression (a key heart stress indicator) 88 seconds later compared to placebo. The improvements correlated directly with blood CoQ10 levels.

While anginal attacks and nitroglycerin use trended downward, these reductions weren't statistically significant. The supplement was well-tolerated with minimal side effects, suggesting CoQ10 is a safe option for angina patients seeking to improve physical endurance.
Read More
4
CoQ10 shows adjuvant heart failure promise; limited angina evidence
Researchers reviewed clinical evidence on coenzyme Q10 (CoQ10) for treating heart conditions. The literature showed that oral CoQ10 was safe and well-tolerated, with promising effects on heart function markers like ejection fraction and exercise capacity in chronic heart failure patients.

However, the evidence for angina and hypertension remains limited. While CoQ10 showed potential as an add-on therapy for heart failure, the review concluded it shouldn't replace standard treatments. More research is needed to establish optimal dosing, drug interactions, and whether CoQ10 truly works as a standalone therapy.
Read More

User Reviews

USERS' SCORE
Good
Based on 22 Reviews
8.2
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
Reduced chest pain
43 people found this helpful
CoQ10 is essential for energy production in our cells and helps the heart pump blood effectively. After starting on 200 mg daily for heart issues, I noticed a significant improvement. By the third day, I had less chest pain and was able to stop taking Corvalol. My skin became smoother and my face tone evened out.
Read More
8
Less chest pain
20 people found this helpful
Coenzyme Q10 is vital for energy and is crucial for the heart. After a month of giving it to my 79-year-old father, his chest pain has reduced significantly, and he feels much healthier. He used to often complain of pressure surges, but now it’s much less frequent.
Read More
8.5
Supports heart health
7 people found this helpful
This product is remarkable, becoming essential for my natural supplement regimen to combat minor to moderate cardiac symptoms. Despite my chest pain history and other cardiac issues, I feel healthy. Doctors may dislike my choice to avoid invasive procedures, but I believe in taking control of my own health. My supplements, especially this one, have enabled me to lead a normal and active life. I would not want to be without it.
Read More
9
No chest pain
3 people found this helpful
I started using this product two years ago for fast heart rate and muscle pain. Since then, I have felt much better, without any issues.
Read More
7
Less chest pain
2 people found this helpful
This dosage has enhanced my stamina significantly and has also benefited my mother’s heart, as her chest pain has decreased noticeably.
Read More

Frequently Asked Questions

9
Reduced chest pain
43 people found this helpful
CoQ10 is essential for energy production in our cells and helps the heart pump blood effectively. After starting on 200 mg daily for heart issues, I noticed a significant improvement. By the third day, I had less chest pain and was able to stop taking Corvalol. My skin became smoother and my face tone evened out.
8
Less chest pain
20 people found this helpful
Coenzyme Q10 is vital for energy and is crucial for the heart. After a month of giving it to my 79-year-old father, his chest pain has reduced significantly, and he feels much healthier. He used to often complain of pressure surges, but now it’s much less frequent.
7
Reduced chest pain
1 people found this helpful
My husband and I took this product for heart support, as he experienced slight chest pain. I understand that coenzyme Q10 assists heart function and may slow the ageing process. I’ve been taking one capsule daily for a month, ideally with meals. After this period, I feel better, and I appreciate the benefits of coenzyme Q10, including its support for heart health and overall well-being.
8
CoQ10 supplementation improved angina symptoms safely
We evaluated how coenzyme Q10 helps patients with heart disease. Patients with stable angina (chest pain from reduced heart blood flow) received 60 mg of coenzyme Q10 daily for 8 weeks alongside their regular medications. The results were encouraging—those who added coenzyme Q10 to their treatment experienced significant improvement in their symptoms without experiencing serious side effects.

References

  1. Kuimov AD, Murzina TA. [Coenzyme q10 in complex therapy of patients with ischemic heart disease]. Kardiologiia. 2013;53:40. PubMed
  2. Tran MT, Mitchell TM, Kennedy DT, Giles JT. Role of coenzyme Q10 in chronic heart failure, angina, and hypertension. Pharmacotherapy. 2001;21:797. PubMed
  3. Kogan AKh, Syrkin AL, Drinitsina SV, Kokanova IV. [The antioxidant protection of the heart by coenzyme Q10 in stable stenocardia of effort]. Patol Fiziol Eksp Ter. 1999. PubMed
  4. Singh RB, Wander GS, Rastogi A, Shukla PK, Mittal A, et al. Randomized, double-blind placebo-controlled trial of coenzyme Q10 in patients with acute myocardial infarction. Cardiovasc Drugs Ther. 1998;12:347. PubMed
  5. Kamikawa T, Kobayashi A, Yamashita T, Hayashi H, Yamazaki N. Effects of coenzyme Q10 on exercise tolerance in chronic stable angina pectoris. Am J Cardiol. 1985;56:247. PubMed
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