DoTERRA On Guard is a blend of five essential oils marketed as a “protective blend” for immune support, aromatherapy, and natural household cleaning. It combines wild orange, clove, cinnamon bark, eucalyptus, and rosemary oils into a single product that people use in diffusers, on their skin, and as the base for homemade cleaning sprays.
What’s in the Blend
On Guard contains five essential oils, each chosen for its aromatic properties. Wild orange provides the dominant citrus scent. Clove and cinnamon bark add warmth and spice. Eucalyptus and rosemary round out the blend with sharper, herbaceous notes. Together they produce a warm, spicy-sweet aroma that most people find pleasant to diffuse at home, especially during cold and flu season.
How People Use It Aromatically
The most common use is diffusing. You add three or four drops to a water-based diffuser and let the mist fill the room. Many people diffuse On Guard during the fall and winter months with the idea that it supports a healthy environment, and the blend does give off an energizing, uplifting scent that can make a room feel fresher. Some users also place a drop or two on their palms, rub them together, and inhale deeply for a quick aromatic boost when they’re feeling run-down.
Household Cleaning
On Guard is widely used as the scent and active ingredient in DIY all-purpose cleaners. The basic recipe is simple: combine about 30 drops of On Guard with an eighth of a cup of white vinegar in a glass spray bottle, then fill the rest with filtered water. Shake gently before each use. People spray it on countertops, cutting boards, doorknobs, bathroom surfaces, and anywhere else they’d normally reach for a conventional cleaner.
One practical tip: use a glass spray bottle rather than plastic. Essential oils can interact with plastic over time, potentially leaching unwanted compounds into the solution. Amber or dark-colored glass is even better because it helps preserve the oils’ potency longer.
Topical Application
Some people apply On Guard to their skin, most often on the bottoms of the feet or along the spine. Because the blend contains potent oils like cinnamon bark and eucalyptus, it should always be diluted with a carrier oil before touching skin. The general recommendation is one drop of essential oil to three drops of a carrier oil like fractionated coconut oil. Applying it undiluted, especially to sensitive areas, can cause skin irritation or a sensitivity reaction.
The bottoms of the feet are a popular application spot because the skin there is thicker and less likely to react. If you’ve never used the blend topically before, start there and watch for any redness or discomfort before applying it elsewhere.
What the Science Actually Says
DoTERRA markets On Guard as supporting healthy immune function and promoting healthy circulation when ingested. It’s worth noting that essential oil blends like this are not evaluated or approved by the FDA for treating or preventing any disease. The individual oils in the blend do contain compounds that have been studied in laboratory settings for antimicrobial and antioxidant properties, but lab results don’t automatically translate to real-world health benefits in humans. Many people report feeling better when they use the blend during cold season, though it’s difficult to separate the oil’s effects from the general benefits of steam inhalation, rest, and the placebo effect.
Safety Around Children
Children need significantly lower doses and higher dilution than adults. For kids, the recommended starting point is one drop of essential oil to 10 drops of carrier oil, which is much more diluted than the adult ratio. Apply to the bottoms of their feet first, since it’s a less sensitive area. Children should never apply essential oils on their own or drink them, and bottles should be stored out of reach. If your child has any existing health conditions, check with their pediatrician before introducing essential oils.
Safety Around Pets
Cats and dogs process certain compounds in essential oils differently than humans do, so caution matters here. When diffusing around pets, use a water-based diffuser with only four to five drops in an open area, and make sure your pet can leave the room freely. Watch their behavior closely when you first introduce any new oil. If you notice sneezing, drooling, lethargy, or avoidance behavior, stop diffusing immediately.
Topical use on pets requires extreme dilution: one drop of essential oil per 100 drops of carrier oil, and even more dilution for animals under 10 pounds. Always check with a veterinarian before applying any essential oil directly to your pet’s skin or fur.
Skin Sensitivity and Sun Exposure
On Guard contains wild orange oil, a citrus-derived ingredient. Citrus essential oils can cause photosensitivity, meaning your skin may burn or react more easily when exposed to sunlight after application. If you apply the blend to any area of skin that will see sun exposure, wait at least 12 hours before spending extended time outdoors, or cover the area with clothing. This is especially relevant if you apply the blend to your hands, arms, or neck rather than the soles of your feet.