A Calendula Oil Aromatic Chest Balm: Recipe and Its Limits

Calendula oil does nothing for a cold, and a chest balm made with it is a scented balm, not a remedy. Calendula is the carrier in this recipe. Whatever effect an aromatic rub has comes from the aromatic oils added to it, which is also where the safety limits sit. We make one product, a calendula infused oil, and we have no experience of colds or flu; what follows is a base recipe for adults, the dilution rules from published sources, and the cases where you should not make or use it.

Calendula oil bottle

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What the one trial tested

The best-known study of a chest rub is a 2010 trial in 138 children aged 2 to 11 with nighttime cough and cold symptoms. Parents applied a commercial vapor rub, petrolatum, or nothing before bed, and rated symptoms the next day. The vapor rub scored best for cough, congestion and sleep difficulty, but petrolatum was not significantly better than no treatment for any outcome, and irritant adverse effects were more common with the vapor rub (Paul et al., 2010). It measured one night of parent-rated symptoms, not illness length, and it tested a commercial product, not a calendula balm.

Reasoning from that result, the base of a rub, the greasy part, did little on its own; the aromatic ingredients are what the parents rated. A calendula oil base is a base. We found no study linking calendula to cold or flu symptoms, and the EU herbal committee's calendula indications are limited to minor skin inflammation, minor wounds and minor mouth or throat inflammation, on traditional use (EMA/HMPC, 2018). We make no claims for this balm for the same reason FDA states in its aromatherapy guidance: how a product is regulated depends mainly on how it is intended to be used, and claims to relieve conditions make it a drug.

Why use calendula oil as the base at all

It is a reasonable carrier, nothing more. Our oil is made from dried flowers, extracted for calendula alone and brought into a carrier oil, with nothing else added, so it behaves like a carrier oil in a balm. If you already own it, it is a fine base; if you do not, any carrier oil would serve the same function. Which carrier is in our oil is on the batch paperwork, not the website: email the lot number to [email protected] if that matters to you.

A base for adults

A common starting point for a salve is about 1 part beeswax to 4 parts infused oil, firmer with more wax (Mountain Rose Herbs). Weigh rather than measure by volume, since beeswax and oil differ in density. For a 100 g batch:

The essential oil limits

This is the part that matters. The Tisserand Institute's dilution ranges list 1-3% for body oils and lotions, 0.2-1% for sensitive or impaired skin, and 3-10% for pain and rollerball products; its text says to start low and increase only if needed. The National Association for Holistic Aromatherapy says most blends fall between 1% and 5%. The sources overlap but differ, so we attribute each. Our suggestion for an adult chest balm is the low end: 1% total essential oil, which is 1 g in the 100 g batch above and needs a scale that reads to 0.1 g. Counting drops is unreliable because drop size varies by oil and bottle.

Which oils is a decision for you and a qualified aromatherapist. The old version of this article listed eucalyptus, peppermint and tea tree. We would leave out tea tree, for a household reason: a pet poison service reports that skin application of concentrated tea tree oil is a common cause of poisoning in dogs, and veterinary toxicologists advise against putting concentrated essential oils on cats, which can swallow them while grooming. A balm on your chest is within reach of a pet that sleeps on you.

Using it

Apply a thin layer to the chest only, wash your hands afterward so the oils do not reach your eyes, and store the tin where children cannot get at it. Before regular use, patch test: dermatologists who run a repeated open application test most often apply a product twice daily to the forearm for one to two weeks, and no standard method has been set (Brown et al., Dermatitis, 2015). That is slower than a cold lasts, which is a reason to test the base and the essential oils before the season starts, not during it. Stop if you get a rash or burning, as FDA advises.

Who should not make or use it

When it is not a cold anymore

A balm does not belong in the decision about whether you are sick enough to need care. The CDC's flu page lists emergency warning signs that call for medical care right away. In children these include fast or trouble breathing, bluish lips or face, ribs pulling in with each breath, dehydration, and any fever in a child younger than 12 weeks. In adults they include difficulty breathing or shortness of breath, persistent chest or abdominal pain or pressure, confusion, and fever or cough that improves and then returns or worsens (CDC, 2024; the lists are not all-inclusive). If you are reaching for a rub because breathing is difficult, call a doctor instead.

If you want a scented balm for a cold-season evening and you are an adult with no daisy-family allergy, the recipe above is a reasonable one. If you want something that changes the course of an illness, nothing in this article supports that.

Calendula oil bottle

Calendula Oil

Nature's Golden Botanical, bottled: small-batch calendula oil in sizes from 0.5 oz to bulk.

From $13.99

Shop Calendula Oil →

Sources & Further Reading