doTERRA On Guard: The Protective Blend Australians Are Turning To

There are essential oil blends that smell nice. And then there's On Guard, doTERRA's bestselling Protective Blend, built around five of the most historically significant botanicals in the world. Warm, spicy, and unmistakably purposeful, it's become a fixture in Australian homes not just for its aroma, but for what it does: supporting immune function, cleaning surfaces, freshening the air, and showing up across an entire range of everyday products.

This guide covers everything you need to know: the history behind each ingredient, how to use every product in the On Guard range, safety considerations, and how the Green Shop Online team actually incorporates it into their daily routines.

What is doTERRA On Guard?

doTERRA On Guard is a proprietary essential oil blend combining Wild Orange peel, Clove bud, Cinnamon Bark, Eucalyptus leaf, and Rosemary leaf: five botanicals with centuries of documented use across different cultures. Together they produce a warm, spicy, camphoraceous aroma that's become one of the most recognisable scents in the essential oil world.

On Guard was designed with three core applications in mind: internal immune support, topical and surface cleaning, and aromatic diffusion. Since its release, doTERRA has expanded it into a full household range—from softgels and toothpaste to laundry detergent and hand wash—all built on the same foundational blend.

Available in Australia through Green Shop Online, On Guard is one of our most consistently popular doTERRA products. And for good reason.

The history behind the ingredients

What makes On Guard distinctive isn't just its formulation—it's the centuries of human use behind each ingredient. Every oil in the blend has a documented history that long predates modern aromatherapy.

Wild Orange (Citrus sinensis)

Originating in Southeast Asia and cultivated across the Mediterranean, China, and the Americas for thousands of years, Wild Orange has been prized for its uplifting aroma and culinary versatility. In traditional Chinese medicine it was used to ease digestive discomfort and lift mood. Cold-pressed from the peel of the fruit, Wild Orange essential oil is the bright, citrus backbone of the On Guard blend—contributing antioxidant properties and the energising top note that makes the blend immediately recognisable.

Clove Bud (Syzygium aromaticum)

Clove's history stretches back over 2,000 years to the Maluku Islands (Spice Islands) of Indonesia, where it was so valuable that it drove the age of European exploration. Ancient Chinese physicians required those visiting the emperor to chew cloves to freshen their breath. Arab traders controlled the clove supply for centuries, and by the Middle Ages it had become one of the most expensive commodities in Europe. Steam-distilled from the flower buds of the clove tree, which takes three years to mature and can live over 100 years, Clove essential oil is rich in eugenol . It also contributes some of the blend's most powerful cleansing properties.

Cinnamon Bark (Cinnamomum zeylanicum)

Cinnamon is one of the oldest spices in recorded history, mentioned in ancient Egyptian texts and referenced in Chinese writings dating back to 2700 BC. In the ancient world it was so precious it was offered as a gift fit for kings and gods. Grown on tropical evergreen trees that reach up to 45 feet, the bark is harvested after three years of maturity, dried in the sun, and steam-distilled to produce the essential oil. Cinnamon Bark brings a sweet, spicy warmth to On Guard and has a long history of use in oral care preparations. It's still widely used in mouthwashes and dental products today.

Eucalyptus (Eucalyptus globulus)

Native to Australia, eucalyptus has been central to Aboriginal medicine for tens of thousands of years: used to treat wounds, fevers, and respiratory complaints. European settlers quickly recognised its properties, and by the 19th century eucalyptus oil was being exported globally. The Eucalyptus globulus variety in On Guard is different from doTERRA's standalone eucalyptus blend and is specifically chosen for its camphoraceous, clarifying aroma. It's the ingredient that gives On Guard its distinctive depth and the slightly cool, woody character that balances the warmth of the cinnamon and clove.

Rosemary (Rosmarinus officinalis)

Once considered sacred by the ancient Greeks, Romans, Egyptians, and Hebrews, rosemary has one of the richest cultural histories of any herb. It was used in religious ceremonies, placed in tombs as a symbol of remembrance, and woven into wedding wreaths as a symbol of fidelity. Steam-distilled from the leaves and stem of the rosemary plant, the essential oil has long been used in traditional practices for its energising, clarifying properties. In On Guard it rounds out the blend with an earthy, herbal quality that grounds the brighter citrus and spice notes.

The full On Guard product range

doTERRA has built On Guard into one of the most comprehensive product lines in the essential oil world. Here's what's in the range and what each product is for.

On Guard Protective Blend (15ml)

The original. A concentrated essential oil blend for diffusion, topical application (diluted), internal use, and DIY surface cleaning. The most versatile product in the range and the best starting point if you're new to On Guard.

On Guard Touch (10ml roller)

The same Protective Blend pre-diluted in Fractionated Coconut Oil and packaged in a roller bottle. Ideal for on-the-go use, children, and anyone with sensitive skin. Apply to pulse points, chest, or the bottoms of feet — no measuring required.

On Guard+ Softgels

The Protective Blend combined with Black Pepper, Oregano, and Melissa essential oils, encapsulated in vegetarian tapioca softgels. Designed for convenient internal use — at home or travelling. The addition of Black Pepper, Oregano, and Melissa enhances the immune-supporting properties of the base blend.

On Guard Foaming Hand Wash

A pH-balanced foaming hand wash using On Guard essential oil blend. Free from synthetic fragrances and formulated to clean without drying or irritating skin. The spiced citrus scent makes it a genuinely pleasant everyday hand wash.

On Guard Natural Whitening Toothpaste

A fluoride-free toothpaste infused with On Guard essential oil blend. Free from synthetic dyes and artificial flavours, it uses the cleansing properties of the blend alongside natural whitening agents for a fresh, spiced clean.

On Guard Cleaner Concentrate

A naturally sourced multi-surface cleaner infused with On Guard essential oil blend. Dilute with water to create a non-toxic, effective surface spray for kitchens, bathrooms, and any hard surface. No synthetic fragrances, no harsh chemicals.

On Guard Laundry Detergent

Free of synthetic fragrances, dyes, and toxins, this natural-based detergent combines the On Guard blend with bio-originated enzymes to lift stains and leave laundry clean and fresh. Colour safe at all temperatures, suitable for up to 64 loads.

On Guard Mist

A travel-sized hand sanitising mist infused with On Guard and moisturising apple extract. Designed for use when soap and water aren't availableL perfect for school bags, handbags, and travel kits.

How to use On Guard

Diffusing

Add 3–4 drops to your diffuser of choice. On Guard diffuses beautifully year-round but is particularly popular in autumn and winter. It fills a room with a warm, spiced aroma that feels both clean and comforting—a great alternative to synthetic air fresheners.

Topical use

Dilute 1–2 drops with a carrier oil (Fractionated Coconut Oil works well) and apply to the chest, pulse points, or the bottoms of the feet. The On Guard Touch roller makes this even simpler. It's pre-diluted and ready to apply. Always dilute before applying to sensitive skin or children.

Internal use

Add one drop to 120ml (4 fl oz) of water or another liquid. On Guard has a naturally spiced, citrus flavour that works well in warm water, herbal tea, or even added to pancake batter or oatmeal. The On Guard+ Softgels are the easiest option for daily internal use — no measuring, no mixing.

Surface cleaning

Add a few drops to a spray bottle with water and a small amount of dish soap for an effective, naturally scented surface cleaner. Alternatively, dilute the On Guard Cleaner Concentrate per the label instructions for a ready-to-use hard surface spray.

Safety – what to know before you use it

⚠️ Please read before using On Guard products.

• Skin sensitivity: Cinnamon Bark and Clove are considered "hot" oils. They can cause skin irritation if applied undiluted. Always dilute with a carrier oil before topical use, particularly on children or anyone with sensitive skin. The On Guard Touch roller is pre-diluted and safe for direct skin application.
• Sun exposure: Avoid direct sunlight or UV rays for up to 12 hours after topical application, particularly on areas that may be exposed.
• Eyes and sensitive areas: Avoid contact with eyes, inner ears, and sensitive areas. If contact occurs, dilute with a carrier oil, not water.
• Internal use: Only use CPTG Certified Pure Tested Grade essential oils internally. Dilute one drop in at least 120ml of liquid. The On Guard+ Softgels are the safest and most precise way to use On Guard internally.
• Do not ingest undiluted: Never swallow essential oils directly without diluting in liquid or a carrier. Swallowing undiluted essential oils can cause irritation to the mouth, throat, and digestive tract.
• Children: Use the On Guard Touch roller or Mist for children rather than the undiluted blend. Apply to the bottoms of feet rather than the face or chest.
• Pregnancy and medical conditions: If you are pregnant, nursing, or under a doctor's care, consult your physician before use.
• Not for spraying on sensitive skin: The Cleaner Concentrate and DIY surface sprays are for hard surfaces only—do not spray directly onto skin.

How our team uses On Guard

We asked two of the Green Shop Online team members who use On Guard regularly to share how it fits into their routines.

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Frequently asked questions

Is doTERRA On Guard safe to ingest?

The On Guard essential oil blend is CPTG Certified Pure Tested Grade and labelled for internal use when properly diluted: one drop in at least 120ml of liquid. The On Guard+ Softgels are the most convenient and precise way to use it internally. Never swallow essential oils undiluted.

Can I use On Guard on my skin directly?

Not undiluted. Cinnamon Bark and Clove are potent oils that can cause skin sensitivity if applied neat. Always dilute with a carrier oil, or use the On Guard Touch roller which is pre-diluted and ready to apply to skin.

Can children use On Guard?

Yes, with care. The On Guard Touch roller and On Guard Mist are the most appropriate products for children. Apply the roller to the bottoms of feet rather than the face or chest. Avoid the undiluted blend on children's skin.

How is On Guard different from other protective blends?

doTERRA On Guard is a proprietary, CPTG-tested blend—meaning every batch is tested for purity and potency through multiple rounds of gas chromatography, mass spectrometry, and microbial screening. The specific combination of Wild Orange, Clove, Cinnamon Bark, Eucalyptus, and Rosemary is unique to doTERRA and the ratio of ingredients is designed for how the oils interact chemically, not just aromatically.

Where can I buy doTERRA On Guard in Australia?

The full doTERRA On Guard range is available through Green Shop Online with fast delivery from our Australian warehouse. Browse the full doTERRA range here.