If you’ve been researching mitochondrial health supplements, you’ve likely encountered two terms that seem interchangeable: Urolithin A and Mitopure. While they’re closely related, understanding the differences can help you make a smarter buying decision.

What Is Urolithin A?

Urolithin A is a naturally occurring compound produced when gut bacteria metabolize ellagitannins, polyphenols found in pomegranates, walnuts, and berries. The problem? Only about 40% of people produce meaningful amounts of Urolithin A on their own, which is why direct supplementation has gained attention.

Research published in peer-reviewed journals has shown that Urolithin A activates mitophagy — the process by which cells recycle damaged mitochondria and replace them with healthy ones. This mechanism has demonstrated benefits for muscle strength, exercise performance, and cellular energy in clinical trials.

What Is Mitopure?

Mitopure is a branded, proprietary form of Urolithin A developed by Amazentis SA, a Swiss life sciences company. Timeline Nutrition markets Mitopure as a premium supplement. The compound itself is chemically identical to generic Urolithin A — the difference lies in the brand, supply chain, and the specific clinical studies conducted using Mitopure as the test material.

Mitopure received a favorable GRAS (Generally Recognized as Safe) review from the FDA in 2018 and has been the subject of multiple human clinical trials, including studies on muscle health, immune function, and cardiovascular biomarkers.

Key Differences at a Glance

The Research Behind Urolithin A

Whether branded as Mitopure or sold as generic Urolithin A, the underlying science applies to the same molecule. Here are the key findings:

Muscle Strength and Performance

A randomized trial in middle-aged adults found that Urolithin A supplementation improved muscle strength by approximately 12% and enhanced aerobic endurance, while reducing plasma biomarkers associated with inflammation and mitochondrial dysfunction.

Immune Health

A 2025 study published in Nature Aging found that 1,000 mg of Urolithin A daily for 28 days increased naïve CD8+ T-cell levels in adults aged 45–70, while reducing immune exhaustion markers — suggesting improved immune fitness through mitochondrial renewal.

Cardiovascular Biomarkers

Preclinical and early human research published in iScience in 2025 demonstrated that Urolithin A improved cardiovascular health biomarkers and enhanced mitochondrial quality control in cardiac tissue.

So Which Should You Choose?

The decision between Mitopure and a high-quality generic Urolithin A supplement comes down to a few factors:

• If brand recognition matters most: Mitopure by Timeline has the most clinical name recognition, though at a premium price point.
• If purity and value matter most: Look for supplements with verified 99%+ purity and transparent third-party testing. Mitovia by Reviant Labs offers pharmaceutical-grade Urolithin A at 1,000 mg per serving with rigorous quality standards.
• If you want the science without the markup: The research supporting Urolithin A applies to the molecule itself, not exclusively to any one brand. A well-manufactured generic supplement delivers the same compound.

The Bottom Line

Mitopure is Urolithin A — a specific branded version of it. The science supporting mitochondrial health, muscle recovery, and cellular energy applies to Urolithin A as a compound, regardless of the brand name on the bottle. What matters most is purity, dosage, and manufacturing standards.

At Reviant Labs, Mitovia delivers 99%+ pure Urolithin A at clinically relevant doses, backed by the same body of research — without the premium branding markup.

Explore Mitovia Urolithin A →