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Coenzyme Q10 and Vitamin C: study protocols

8 study groups took Coenzyme Q10 together with Vitamin C. These are the doses the studies gave. They are not a recommendation.

Coenzyme Q10: what the research found →

Dose per serving from research: Coenzyme Q10

8 study groups in 7 studies say how much Coenzyme Q10 participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 25 mg to 50 mg and 100 mg to 250 mg, 38% of 8 study groups each.

Daily doseStudy groups
25 mg to 50 mg
3
50 mg to 100 mg
1
100 mg to 250 mg
3
250 mg to 500 mg
1

Dose per serving from research: Vitamin C

8 study groups in 7 studies say how much Vitamin C participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 100 mg to 250 mg, 63% of 8 study groups.

Daily doseStudy groups
100 mg or less
1
100 mg to 250 mg
5
250 mg to 500 mg
0
500 mg to 1 g
2

Commonly used together

8 of 8 study groups took Coenzyme Q10 and Vitamin C with something else. Shown: what 3 or more different studies gave.

What was given together, not what works together.

Taken withStudy groups
Vitamin E
6

8 study groups

Study
Coenzyme Q10 supplementation reduces corticosteroids dosage in patients with bronchial asthma
2005 · Antioxidants in addition to standard antiasthmatic therapy · Adults aged 25–50 with persistent mild to moderate bronchial asthma
120 mg250 mg16 weeks—
Improvement of migraine symptoms with a proprietary supplement containing riboflavin, magnesium and Q10: a randomized, placebo-controlled, double-blind, multicenter trial
2015 · Verum (investigational nutritional product) · Adults aged 18–65 of either sex with migraine with or without aura, and at least 3 migraine attacks per month before recruitment
150 mg200 mg90 days63
Protective effect of anti-oxidants on endothelial function in young Korean-Asians compared to Caucasians
2012 · antioxidant vitamins · Healthy Korean and Caucasian adults aged 20–35 years
300 mg1 g2 weeks20
Increased serum and low-density-lipoprotein antioxidant potential after antioxidant supplementation in endurance athletes
1997 · antioxidant trial · Eight endurance athletes
60 mg1 g4 weeks8
Six-month supplementation with high dose coenzyme Q10 improves liver steatosis, endothelial, vascular and myocardial function in patients with metabolic-dysfunction associated steatotic liver disease: a randomized double-blind, placebo-controlled trial
2024 · CoQ10 group · Adults aged 18 years or older with metabolic-dysfunction associated steatotic liver disease and at least one extra cardiometabolic risk factor, without diabetes mellitus
240 mg160 mg26 weeks30
Effects of a Combination of Water-Soluble CoenzymeQ10 and Collagen on Skin Parameters and Condition:Results of a Randomised, Placebo-Controlled,Double-Blind Study
2020 · test group · Healthy Caucasian women aged 40–65 with signs of skin aging
50 mg80 mg12 weeks17
Peroxidation of LDL from combined-hyperlipidemic male smokers supplied with omega-3 fatty acids and antioxidants
1997 · antioxidants · male smokers with combined hyperlipidemia
30 mg150 mg6 weeks—
Peroxidation of LDL from combined-hyperlipidemic male smokers supplied with omega-3 fatty acids and antioxidants
1997 · omega-3 FAs and antioxidants · male smokers with combined hyperlipidemia
30 mg150 mg6 weeks—
Coenzyme Q10 and Vitamin C: study protocols | supp.fit