PQQ for egg quality and mitochondrial health in fertility is a topic that has quietly moved from laboratory research into the conversations women are having with their doctors.
Trying to conceive without success can be frustrating, especially when you are eating well, managing stress, and taking your prenatal vitamins but still not getting pregnant.
For women over 35 or those with diminished ovarian reserve, egg quality may be a concern. Eggs need plenty of energy to mature, and mitochondria are the structures inside cells that produce that energy.
This is where PQQ (pyrroloquinoline quinone) comes into the picture. PQQ is a compound being studied for its antioxidant properties and potential role in mitochondrial health. But can it help support egg quality and fertility? Let us look at what the science says.
What Is PQQ and How Does It Support Mitochondrial Health and Egg Quality?
Pyrroloquinoline quinone, commonly known as PQQ, is a naturally occurring compound found in small amounts in foods such as fermented soybeans and green tea. It has antioxidant properties and is being studied for its potential to stimulate the growth of new mitochondria through a process called mitochondrial biogenesis.
Mitochondria are structures inside cells that produce the energy needed for normal cell function. Eggs require substantial energy to mature, support fertilization, and sustain early embryo development. As women age, changes in mitochondrial function may contribute to declining egg quality, although egg quality is also influenced by chromosome abnormalities and other factors.
PQQ has attracted scientific interest because it may help protect cells from oxidative stress and influence pathways involved in mitochondrial biogenesis. However, its effects on human egg quality and fertility have not been established.
If you are exploring the best CoQ10 supplements for fertility, you may notice that PQQ and CoQ10 are often discussed together. They may support different aspects of mitochondrial function, but there is not enough clinical evidence to conclude that taking them together improves fertility.
Here are a few things to consider regarding PQQ:
- Include foods such as fermented soybeans and green tea as part of a balanced diet. However, the amount of PQQ in food is small and can vary.
- If considering a PQQ supplement, check the product label for the amount per serving and the form used.
- BioPQQ is a branded form of PQQ used in supplements and studied in human research.
- Speak with your fertility specialist before starting PQQ, particularly if you have diminished ovarian reserve or are preparing for IVF.
- Do not assume that taking PQQ for three months will improve egg quality. This benefit has not been established in human fertility studies.
Can PQQ Improve Egg Quality?
Research on PQQ specifically for fertility is still limited. Much of the evidence about its potential effects on mitochondria comes from laboratory and animal studies. Although these findings help researchers understand how PQQ might work, they do not prove that taking it improves egg quality or pregnancy outcomes in women.
Some animal studies have investigated mitochondrial antioxidants and their effects on egg aging. Other laboratory research has examined PQQ and its potential effects on oxidative stress and mitochondrial function. These findings offer possible explanations for its scientific interest, but more human research is needed to determine whether supplementation benefits women trying to conceive.
PQQ is often discussed alongside CoQ10 because they may have complementary roles. CoQ10 helps support energy production in existing mitochondria, while PQQ is being studied for its potential role in mitochondrial biogenesis. However, researchers have not established that combining these supplements improves egg quality, pregnancy rates, or live birth rates.
Women interested in improving egg quality after 35 can explore the broader evidence on nutrition, age, and reproductive health.
Which Supplements Support Mitochondrial Health and Egg Quality?
Fertility supplementation is rarely about a single nutrient. If you are preparing for conception, the priority is to establish a sound nutritional foundation and address any deficiencies with guidance from your healthcare provider. PQQ is being investigated for mitochondrial health, but it has not been established as a fertility treatment.
Several other nutrients have been studied for their roles in cellular function and reproductive health.
- CoQ10: CoQ10, particularly the ubiquinol form, supports mitochondrial energy production and has been studied in women undergoing fertility treatment. Some studies suggest potential benefits for ovarian response and embryo development, but evidence for improved pregnancy and live birth rates remains limited.
- Alpha lipoic acid: Alpha lipoic acid is an antioxidant that has been studied for its potential effects on oxidative stress and ovarian health. More research is needed to determine whether supplementation improves fertility outcomes.
- Folic acid: Folic acid is essential before and during early pregnancy because it helps reduce the risk of neural tube defects. Women planning pregnancy should follow established recommendations for folic acid rather than replacing it with another form without medical advice. Having an MTHFR variant does not automatically mean that folic acid should be avoided.
- Omega 3 fatty acids: Omega 3 fatty acids support normal cell membrane function and general health. Their specific effects on egg quality and fertility remain uncertain.
- Vitamin D: Vitamin D supports bone health and other normal body functions. If you have a deficiency, your healthcare provider can advise whether supplementation is appropriate.
- PQQ: PQQ is being investigated for its antioxidant properties and potential effects on mitochondrial biogenesis. Human evidence supporting its use specifically for egg quality is still insufficient.
For a broader overview of supplements used in preconception care, read the best fertility supplements for women.
Some commercially available products containing these nutrients include:
- Life Extension PQQ Caps with BioPQQ, a PQQ supplement.
- Jarrow Formulas QH absorb Ubiquinol, a CoQ10 supplement.
- FullWell Women’s Prenatal, a prenatal multivitamin.
- Doctor’s Best PQQ with BioPQQ and Coenzyme Q10, a combination supplement containing PQQ and CoQ10.
Product formulations and availability can change, so check current labels and consult your healthcare provider before combining supplements.
Is PQQ Safe When Trying to Conceive? Dosage, Timing, and Precautions
Although PQQ has been studied in humans, there is limited safety information for women who are trying to conceive, pregnant, or undergoing fertility treatment. There is also no established dosage for improving egg quality. Speak with your healthcare provider before taking PQQ, and do not continue it into pregnancy without medical advice.
Egg development takes several months, which is why preconception health is worth addressing early. However, there is no established timeline showing that taking PQQ for three months improves egg quality. If you are preparing for IVF, ask your fertility clinic whether any supplements are appropriate for your individual situation.
It is also important to have realistic expectations. Supplements cannot address every cause of poor egg quality or replace fertility evaluation. If you have diminished ovarian reserve, read our guide to low AMH and natural supplement support for more information.
Lifestyle habits also matter. Getting enough sleep, avoiding smoking, limiting alcohol, and maintaining healthy blood sugar levels support overall health and may help reduce factors associated with oxidative stress.
When choosing PQQ or another supplement, look for clear ingredient information, dosage details, and independent quality testing where available.
Frequently Asked Questions
What does PQQ actually do for egg quality?
PQQ is an antioxidant that may support mitochondrial biogenesis, meaning it could help cells grow new mitochondria. Because eggs depend heavily on mitochondrial energy for proper maturation and fertilization, improving mitochondrial function is a plausible mechanism for supporting overall egg quality and early embryo development.
Should I take PQQ with CoQ10 for fertility?
Many fertility specialists suggest combining PQQ and CoQ10 because the two nutrients work on different parts of mitochondrial health. CoQ10 supports energy production within existing mitochondria, while PQQ may stimulate new mitochondrial growth. Together, they may offer broader mitochondrial support than either nutrient alone.
Is PQQ safe during pregnancy?
PQQ is generally considered safe during the preconception phase based on available data, but large-scale safety trials specifically in pregnant women are lacking. The conservative approach is to use PQQ before conception and then discuss with your doctor whether to continue after a positive pregnancy test is confirmed.
A Word From Vitamins For Woman
PQQ for egg quality and mitochondrial health in fertility represents one of the more scientifically grounded areas of emerging preconception nutrition, even if the human trial data is still catching up to the biological rationale. We believe that every woman deserves access to clear, honest information so she can make confident decisions alongside her care team. Supplements like PQQ are most powerful when they sit within a thoughtful, comprehensive approach that includes good nutrition, medical evaluation, and realistic expectations.
References
- Xu Y et al. (2018). Mitochondria: new players in the pathogenesis and treatment of female infertility. Journal of Assisted Reproduction and Genetics. PMID: 29417338. PubMed
- Chappell NR et al. (2022). Mitochondrial dysfunction is a driver of oocyte quality decline. Fertility and Sterility. PMID: 34674843. PubMed
- Bentov Y et al. (2013). The use of mitochondrial nutrients to improve the outcome of infertility treatment in older patients. Fertility and Sterility. PMID: 23375134. PubMed
- Ruder EH et al. (2009). Oxidative stress and antioxidants: exposure and impact on female fertility. Human Reproduction Update. PMID: 19261627. PubMed
- Harris CB et al. (2013). Dietary pyrroloquinoline quinone (PQQ) alters indicators of inflammation and mitochondrial-related metabolism in human subjects. Journal of Nutritional Biochemistry. PMID: 22549861. PubMed
