The Science of Ozone: Why I'm Excited About Ozone-Infused Salves in Skin Care
When patients hear the word ozone, they usually think of the layer high above our heads that protects us from UV radiation — or the smell that follows a thunderstorm. Actually, ozone is also one of the most versatile molecules in medicine. I want to walk you through both the chemistry and the clinical reasoning behind why I have become interested in ozone-infused salves. Ozone (O₃) is a triatomic form of oxygen — three oxygen atoms bonded together instead of the two in the air we breathe every day. The third-wheeling oxygen atom makes the molecule inherently unstable, and that ironically is what gives it therapeutic potential. Ozone is a powerful oxidizer, meaning it readily gives up that extra oxygen atom to react with other molecules it encounters. In healing applications, this reaction is harnessed in a controlled way. Ozone gas is bubbled through a stable carrier oil until the oil itself becomes ozonated.
The chemistry of ozonation is worth understanding because it explains why the finished product behaves so differently from the starting oil. Cold-pressed oils rich in unsaturated fatty acids — olive oil and sunflower oil are the two most commonly used — contain carbon-carbon double bonds along their fatty acid chains. When ozone gas is bubbled through these oils over an extended period, it reacts with those double bonds through a process chemists call ozonolysis, forming intermediate compounds known as ozonides. As the reaction continues and the oil is exposed to ozone for days or even weeks, those ozonides further break down into a mixture of peroxides, including short-chain fatty acid peroxides. This is why properly ozonated oil thickens, changes color, and develops that distinctive sharp scent people associate with ozone. What you end up with is no longer a simple emollient oil, but a reservoir of stable oxygen-releasing compounds suspended in a lipid base, which can then be blended into a salve or balm for topical use. An ozonated salve is typically well-tolerated on a wide variety of skin types.
From a clinical standpoint, this oxidative chemistry is exactly what makes ozonated oil interesting for skin support. Peroxides and ozonides are able to interact with the outer membranes of microorganisms far more readily than they interact with the tougher, more resilient membranes of our own skin cells, which gives ozonated oil a favorable safety profile for topical use even though the underlying chemistry is inherently oxidative. This selective reactivity is part of why ozonated olive oil has a long documented history — particularly in European and Cuban medical literature going back decades — as a topical preparation studied for its effects on the skin's surface. Beyond its interaction with microorganisms, ozonated oil is also thought to support the skin's local oxygen availability and circulation at the site of application, and some formulations are explored for their potential to support the skin's natural repair processes when the skin barrier has been disrupted.
Because of this broad mechanism — oxidative action on the skin surface, potential microbial modulation, and support for local tissue oxygenation — ozone-infused salves have found their way into a surprisingly wide range of educational and traditional use cases, and the choice of carrier oil often tracks with the intended use. Olive oil remains the most extensively documented base because its high oleic acid content ozonates readily and stably, but coconut oil and jojoba oil are both popular alternatives in salve formulation.
Ozonated coconut oil, with its high concentration of saturated medium-chain fatty acids, tends to produce a firmer, more solid ozonide at room temperature, which many formulators favor for balms meant to hold their shape. Jojoba oil, technically a liquid wax ester rather than a triglyceride, ozonates more slowly but is prized for its long shelf stability and its compatibility with sensitive or acne-prone skin, since it closely mimics the skin's own sebum. I often reach for the ozone-infused jojoba salve first due to its versatility.
In the context of acne, the interest lies in ozonated oil's ability to interact with the skin surface environment associated with breakouts, offering a plant-oil-based alternative to some conventional topical approaches, with jojoba-based formulations often chosen here for their lighter feel. For eczema and other conditions involving a compromised or inflamed skin barrier, the oil base itself provides emollient, moisturizing support, while the ozonated component adds the oxidative layer of interest researchers have explored; coconut-based salves are frequently chosen in this context for their additional occlusive, barrier-supportive properties. Ozonated oil salves are also discussed frequently in the context of minor wound care and skin irritation, where historical and modern interest has centered on the oxygen-rich environment the salve creates at the surface of the skin.
Ozonated coconut oil in particular has an interesting use case beyond the skin: oil pulling, a traditional practice in which oil is swished in the mouth for several minutes at a time. Because coconut oil is already a common base for oil pulling on its own, some practitioners have become curious about whether ozonating it beforehand adds the same oxidative, microbially-interactive properties in the oral cavity that we see with ozonated oils on the skin. It's a natural extension of the same underlying chemistry — the ozonides and peroxides formed during ozonation don't change their fundamental behavior depending on where they're applied — but it's worth noting as a distinct application area from topical salve use, since the mouth's mucosal environment behaves quite differently from skin.
Stepping outside topical and oral applications entirely, ozone therapy also has a systemic delivery route worth understanding: intravenous ozone administration, most often performed as major autohemotherapy. In this approach, a small volume of the patient's own blood is drawn, gently mixed with a precise medical-grade ozone-oxygen gas mixture outside the body, and then reinfused. The same oxidative chemistry that governs ozonated oils is at work here, just in a biological fluid rather than a lipid base: ozone reacts rapidly with the blood's plasma and cellular components, generating a cascade of secondary messenger molecules, including lipid oxidation products and reactive oxygen species, that the body then responds to systemically.
Practitioners who use this technique are typically interested in its potential downstream effects on circulation, immune signaling, and the body's own antioxidant response systems, since introducing a controlled, transient oxidative stimulus is thought to prompt an adaptive upregulation of the body's endogenous antioxidant enzymes. This is a fundamentally different exposure model than a topical salve, both in dose and in how directly the ozone interacts with living tissue, and it's typically administered only in a clinical setting under direct practitioner supervision.
A further refinement of intravenous ozone therapy combines it with ultraviolet light exposure of the blood, a technique with roots in a much older practice called ultraviolet blood irradiation, or UBI. In this combined approach, the same small volume of withdrawn blood is exposed to UV light, often alongside the ozone-oxygen gas mixture, before being reinfused. The rationale for pairing the two is additive: UV light has its own well-documented effects on blood components, including photochemical modification of lipids and proteins in the plasma, and combining it with ozone's oxidative action is thought by proponents to amplify the systemic signaling response described above. Historically, UBI predates modern ozone therapy by several decades, having been explored in the early-to-mid twentieth century before falling out of mainstream use with the rise of antibiotics, and its more recent pairing with ozone represents a modern revival of that older technique within integrative and naturopathic settings. As with IV ozone alone, this is a clinical procedure requiring specialized equipment and direct medical supervision, and it sits at a very different point on the exposure spectrum than a jar of ozonated oil sitting on a bathroom shelf.
What I find most compelling about ozone-infused salves as a category is how they sit at the intersection of very old, very simple technology — an oil, a gas, and time — and genuinely interesting modern biochemistry. There's something satisfying about a preparation whose entire mechanism of action can be traced back to a single, well-understood chemical reaction: the slow, controlled oxidation of unsaturated fats into a stable, oxygen-donating compound. That simplicity is part of why ozonated oil has persisted as a topic of interest across so many different traditions of medicine, from European ozone therapy clinics to naturopathic practices here in the United States. As with any topical preparation involving oxidative compounds, formulation quality matters enormously — the concentration of ozonides, the freshness of the base oil, and the length and method of ozonation all affect the character of the final salve. That's part of what makes this such a rich topic to dig into, both from a scientific and a formulation standpoint, and it's a big part of why I keep coming back to it in my own reading and practice.
This post is for general educational purposes and reflects my own interest in the chemistry and history of ozone-infused topicals. It isn't intended to diagnose, treat, or replace individualized medical advice.
Dr. Evelyn Cordova | Telemedicine Naturopath