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ingestible · for fertility & reproductive health

CoQ10 (Ubiquinol)

Reviewed by the Nimbera editorial team · Last updated May 2026

Xu 2024 Annals of Medicine (PMID 39129455) - systematic review and meta-analysis of 6 RCTs (n=1529 women with diminished ovarian reserve undergoing IVF/ICSI); CoQ10 pretreatment significantly increased clinical pregnancy rate (OR 1.84, 95% CI 1.33-2.53, p=0.0002), number of oocytes retrieved (MD +1.30), and number of top-grade embryos, while reducing cycle cancellation rate.$30-$60/month for 200-400 mg ubiquinol daily

How to use

Take 200-600 mg of ubiquinol (the reduced, better-absorbed form) daily with a meal containing fat. Start at least 60-90 days before a planned IVF cycle or while trying to conceive naturally, as egg maturation takes approximately 90 days. Split doses (e.g. 200 mg twice daily) may improve absorption.

How it works

CoQ10 is a mitochondrial cofactor essential for ATP production. Oocytes have an exceptionally high energy demand during maturation. Ovarian CoQ10 levels decline with age, impairing mitochondrial function and increasing oxidative damage to eggs. Supplementation replenishes mitochondrial CoQ10, improving energy supply and reducing reactive oxygen species in the follicular environment.

Where to buy

Jarrow Formulas QH-absorb, Qunol Ultra Ubiquinol, and NOW Foods Ubiquinol are widely available at health food stores, pharmacies, and Amazon. Look specifically for ubiquinol (not ubiquinone) for superior bioavailability in women over 35.

Typical cost: $30-$60/month for 200-400 mg ubiquinol daily

Safety notes

Generally well tolerated. May interact with warfarin (blood thinners) - consult your doctor if anticoagulated. Most clinicians recommend stopping once a positive pregnancy test is confirmed unless advised otherwise by your reproductive endocrinologist. Does not replace IVF medical protocols or evaluation for structural fertility causes.

Drug & supplement interactions

  • Always tell your doctor or pharmacist about any supplements you take.
  • Interactions can occur with prescription medications, blood thinners, and immunosuppressants.
  • Herbal remedies can affect how the body absorbs or metabolises drugs.
  • Check drugs.com interactions checker before starting.

Clinical source

Xu 2024 - Annals of Medicine (PMID 39129455)

This information is compiled from primary clinical literature and is for informational purposes only. It is not a substitute for professional medical advice. Read our full disclaimer.