Ozone Therapy

Ozone therapy is an alternative health practice that involves the therapeutic application of ozone gas — a molecule composed of three oxygen atoms (O₃) — to the body. Practitioners and researchers have explored its use across a range of health contexts, including wound care, immune support, and pain management. It is administered through a variety of delivery methods, including insufflation, ozonated water or oil, intravenous infusion, and topical application, depending on the intended purpose and the training of the practitioner.

Proponents of ozone therapy suggest that the introduction of ozone into the body may support cellular oxygenation, influence inflammatory pathways, and interact with the immune system in ways that some find beneficial. The practice sits at the intersection of conventional medical interest and alternative health traditions, and it is approached with varying degrees of acceptance across different countries and healthcare systems. In some parts of Europe and Latin America, ozone therapy has been more formally integrated into clinical settings, while in the United States it remains largely outside mainstream medical practice.

It is important to approach ozone therapy with informed caution. The evidence base is still developing, regulatory positions vary significantly by jurisdiction, and the safety profile depends heavily on the method of administration. Inhaled ozone, for example, is recognized as a lung irritant and is not used therapeutically. Anyone considering ozone therapy is encouraged to consult with a licensed healthcare provider, research the qualifications of any practitioner they are considering, and weigh the available evidence thoughtfully before proceeding.

The therapeutic use of ozone dates back to the mid-19th century, when the gas was first identified and its potential antimicrobial properties began to attract scientific curiosity. German scientists played a central role in early explorations, and by the early 20th century, ozone generators were being developed for use in water purification and wound disinfection. During World War I, ozone was reportedly used by some practitioners to treat infected wounds and environmental contamination in field conditions.

Through the 20th century, interest in ozone therapy continued to evolve, particularly in Germany, Cuba, Russia, and Italy, where it found a place in some naturopathic and integrative medical traditions. Cuban researchers, in particular, have published extensively on its clinical use over several decades. In the United States, ozone therapy has largely remained outside mainstream medicine, though it has maintained a presence within naturopathic, functional medicine, and holistic dental communities. Today, professional organizations such as the International Scientific Committee of Ozone Therapy (ISCO3) work to standardize research and practice protocols globally.