Is CoQ10 Safe During Pregnancy?

Updated September 8, 2026

The Answer

CoQ10 from foods is low concern during pregnancy. Concentrated oral supplements warrant caution and clinician guidance because first trimester and long term fetal safety data are limited. Normal non aerosol topical use on intact skin is considered low concern.

The key distinction is exposure: food amounts, concentrated oral supplements, and normal topical cosmetic use do not have the same evidence or level of concern.

One randomized trial used 200 mg daily from 20 weeks in high risk pregnancies without a major safety signal, but it did not establish routine first trimester or long term fetal safety.

Already used it? If you have already taken a CoQ10 supplement, note the form and daily amount and discuss them with your healthcare practitioner, particularly if the amount exceeded 100 mg per day or you use a blood thinner.

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What Is CoQ10?

You may also see it listed as: coenzyme Q10, ubidecarenone, ubiquinone-10

CoQ10 is a fat soluble compound made by the body and found in foods. It helps with cellular energy production and acts as an antioxidant. Ubiquinone is its oxidized form; CoQ10 is commonly sold in capsules, softgels, vitamins, and other oral supplements, and ubiquinone is also used in skin- and hair care products.

What Other Ingredients Should You Look Out for in Products With CoQ10?

A product's full ingredient list determines whether it's pregnancy-safe or not. These ingredients also appear in some of the coq10 products we analyzed and may deserve a closer look.

Retinoid

Avoid

Look for retinyl palmitate in topical products. Pregnancy guidance recommends avoiding routine cosmetic retinoid use, although inadvertent low level topical exposure is more reassuring than oral retinoid exposure.

Flagged in 3 products (0.6%) in this analysis.

Panax Ginseng

Avoid

White Panax ginseng identifies an oral Asian ginseng ingredient. Because human pregnancy evidence is limited and developmental concerns come mainly from isolated ginsenoside embryo studies, check the supplement with your healthcare practitioner.

Flagged in 2 products (0.4%) in this analysis.

Alcohol

Avoid

Ethanol on a swallowed supplement label can indicate alcohol retained as a solvent or carrier. Check the finished product’s alcohol concentration, serving size, and frequency; pregnancy guidance recommends avoiding alcohol containing oral supplements.

Flagged in 1 product (0.2%) in this analysis.

Linseed Oil

Caution

Organic flaxseed oil or flaxseed oil in capsules is a concentrated supplement exposure, unlike normal food amounts. Pregnancy specific evidence is limited, so check the amount and other ingredients with your healthcare practitioner.

Flagged in 10 products (2.1%) in this analysis.

Quercetin

Caution

Quercetin on a supplement label indicates an isolated flavonol exposure rather than the small amounts naturally present in foods. Human pregnancy safety data for concentrated supplements are lacking, and medicine interactions are possible, so review the full formula with your healthcare practitioner.

Flagged in 4 products (0.8%) in this analysis.

Seaweed

Caution

Sea vegetable extract can supply highly variable iodine when used in a supplement. Check the species, iodine amount, and whether the formula contains concentrated kelp or brown seaweed rather than assuming all seaweed ingredients are equivalent.

Flagged in 2 products (0.4%) in this analysis.

Does the Form or Amount of CoQ10 Matter During Pregnancy?

Ordinary dietary exposure is low concern, but supplement doses are more concentrated and have limited first trimester and long term fetal safety evidence. One pregnancy trial used 200 mg daily from 20 weeks until delivery in high risk pregnancies, so it cannot answer routine early pregnancy use. Doses above 100 mg daily add a specific blood thinner caution. For skin care, normal non aerosol use on intact skin is considered low concern; broken skin, large areas, occlusion, and enhanced delivery formulas remain less certain.

What Products Contain CoQ10?

Pregnancy Safe has looked at 1,377 products that have coq10 as an ingredient. The category and grade breakdowns below use 472 products whose names mention CoQ10 or another name for it.

What Types of Products Contain CoQ10?

Dietary Supplement 455 products
Face Cream 2 products
Lotion 2 products
Body Lotion 1 product
Energy Drink 1 product
Eye Cream 1 product
Facial Cleansing Gel 1 product
Facial Moisturizer 1 product
Facial Toner 1 product
Fish Oil 1 product

Products You May Have That Contain CoQ10

Grade Product Brand Type
C+ Coq10 + Pqq Advance Physician Formulas Dietary Supplement
C+ Kirkland Signature Coq10 300 Mg 100 Softgels Kirkland Signature Dietary Supplement
C+ Coq10 Plus Vitamin E 365 Everyday Value Dietary Supplement
C Max Coq10 100 Mg Adaptogen Research Dietary Supplement
C+ Coq10 + Hawthorn Berry Afi America'S Finest Dietary Supplement
C+ Coenzyme Q10 30 Mg With Vitamin C Allergy Research Group Dietary Supplement
C+ Coenzyme Q10 50 Mg With Vitamin C Allergy Research Group Dietary Supplement
C+ Coenzyme Q10 With Tocotrienols Allergy Research Group Dietary Supplement

How Do Products Containing CoQ10 Score?

It can be helpful to see how products containing coq10 generally score during pregnancy. This does not tell you whether your exact product is safe, but it gives you a general idea of what we found. In this breakdown of 472 products, 98% receive a C grade. A C grade means the complete formula has some pregnancy considerations, so use it sparingly and consider a higher scoring alternative when one is available.

A
0 (0%)
B
0 (0%)
C
462 (98%)
D
4 (1%)
F
6 (1%)

Frequently Asked Questions About CoQ10 During Pregnancy

Should I stop taking CoQ10 when I become pregnant?

The evidence does not establish a universal stopping point. Because concentrated oral supplements have limited first trimester and long term fetal safety data, discuss your product, amount, and reason for use with your healthcare practitioner.

Is CoQ10 safe in the first trimester?

Routine first trimester supplement safety has not been established. The available pregnancy trial began at 20 weeks in high risk pregnancies, so it does not answer early pregnancy use.

Can I take CoQ10 with a prenatal vitamin?

The available evidence does not establish that this combination is appropriate for every pregnancy. Check both labels for CoQ10 and other active ingredients, then review the complete daily amounts with your healthcare practitioner.

Does CoQ10 prevent miscarriage?

The available evidence does not establish that CoQ10 prevents miscarriage. The pregnancy trial described in the evidence evaluated preeclampsia risk in high risk pregnancies beginning at 20 weeks, not miscarriage prevention.

Is CoQ10 skincare safe during pregnancy?

Normal non aerosol topical cosmetic use on intact skin is considered low concern at current concentrations. Evidence is less certain for broken skin, large treated areas, occlusion, or enhanced delivery formulations.

Does the form or dose of CoQ10 matter?

Yes. Food exposure is low concern, concentrated oral supplements warrant clinician guidance, and normal topical cosmetic use is considered low concern. Oral doses above 100 mg per day also carry a specific blood thinner caution.

How Do We Score Products for Pregnancy Safety?

We analyze each product's ingredients and category to flag known risks and provide cautionary notices for general category safety concerns.

Sources

  1. https://lpi.oregonstate.edu/mic/dietary-factors/coenzyme-Q10
  2. https://pmc.ncbi.nlm.nih.gov/articles/PMC4737275/
  3. https://pmc.ncbi.nlm.nih.gov/articles/PMC8884185/
  4. https://pubchem.ncbi.nlm.nih.gov/compound/Coenzyme_Q10
  5. https://pubchem.ncbi.nlm.nih.gov/compound/Idebenone