Calendula Oil Questions Answered, With Sources

These are the questions that decide whether calendula oil is right for you, grouped in the order you would meet them: before you buy, before the first use, and after the bottle is open. We make one product, an infused calendula oil, so where a question is about the flower, the drying, the infusion or the batch paperwork we answer from our own process. Where it is about skin outcomes, pregnancy, children or pets, we answer from the published sources and tell you which professional to ask.

Calendula oil bottle

Calendula Oil

Our own small-batch calendula oil, in sizes from 0.5 oz to bulk.

From $13.99

Shop Calendula Oil →

Before you buy

Is calendula oil the same as marigold oil?

Only if the marigold is Calendula officinalis, also called pot marigold. French and African marigolds are Tagetes, a different genus. The commercial "marigold extract" sold as a lutein source is normally Tagetes (Kurniawan et al., Foods, 2026), and Pet Poison Helpline rates the two plants differently for pets (Pet Poison Helpline). Ours is made from Calendula officinalis.

Is calendula oil an essential oil?

No. An essential oil is distilled, and calendula distillation yields only 0.2-0.3% of the dried flower by the EU assessment report's figure (EMA/HMPC, 2008). Calendula oil as we make it is an infused oil: calendula extract brought into a carrier oil. See the full comparison.

How is it made?

We buy dried flowers, not finished oil. They are dried naturally by traditional methods, with no industrial heat or forced air, and we infuse petals separated by hand from sound, whole-dried flower heads. Production has two stages: we extract calendula alone, then bring that extract into a carrier oil. For comparison, the EU herbal monograph lists a traditional oil preparation at 1:10 flower to fatty oil, with olive oil as the example (EMA/HMPC, 2018). We do not publish our own ratio in this article.

What carrier oil is it in?

Most of an infused oil is its carrier, so it matters for feel, stability and allergies. The batch paperwork lists ours; email the lot number to [email protected] and ask.

What does "organic" on a calendula oil mean?

In the US, FDA does not define "organic" for cosmetics, and USDA rules apply only to certified products (USDA AMS). We say our flowers are organically grown, with no synthetic pesticides or fertilizers, on family farms in Egypt, Hungary, the Balkans and Turkey. We do not say "certified organic," since our site does not document a certification.

What does a certificate of analysis show?

The tests that were run, and no more. Every batch of ours is tested by independent third-party labs for physical assays, chemical assays and contaminant screening, with documents on request and a COA PDF linked on the shop page. A data sheet for a commercial calendula macerate, for example, specifies physical constants, peroxide value and microbial counts, with no carotenoid assay (Golgemma/Biolandes, FB026, 2025). Read which assays were run before you read the results.

Why is it orange?

Carotenoids, concentrated in the petals. One four-variety study found orange-flowered varieties held several times more total carotenoid per gram of fresh flower than yellow ones (276 versus 48 mg/100 g) (Pintea et al., Acta Biol Szeged, 2003). Color alone is not proof of quality: industry reviews document colorants added to other botanical oils (Gafner et al., J Nat Prod, 2023).

Does calendula oil have an SPF?

We do not state one, and you should not rely on it for sun protection. A 2019 laboratory study measured an in vitro SPF of 8.36 for distilled calendula essential oil, a spectrophotometer estimate on a different material from an infused oil (Lohani et al., J Cosmet Dermatol, 2019). FDA regulates sunscreens as drugs (FDA), and the American Academy of Dermatology recommends broad-spectrum, water-resistant SPF 30 or higher (AAD).

Before the first use

Can you be allergic to calendula oil?

Yes. Calendula is in the daisy family (Asteraceae, or Compositae). The EU monograph lists hypersensitivity to Asteraceae plants as a contraindication and says skin sensitization has been reported, frequency unknown (EMA/HMPC, 2018). In a patch-test series of 443 dermatitis patients, about 2% reacted to marigold (Reider et al., Contact Dermatitis, 2001). If you react, stop using it. The full picture is in our allergy article.

Should I worry about ragweed allergy?

Possibly. Allergy specialists report that some people with ragweed or mugwort pollen allergy also react to herbal products from related plants, including marigold; the sources do not say how often (Preda et al., Medicina, 2024). Ask an allergist. More in the ragweed cross-reactivity article.

How do I patch test?

Dermatologists use a repeated open application test: twice daily on the inner forearm, 7 days in the original protocol (Hannuksela and Salo, 1986), while a later survey found most dermatologists continue for one to two weeks and no standard method exists (Brown et al., Dermatitis, 2015). Allergic rashes can appear hours or days after contact (AAD), so a single-evening test is weak evidence. Steps are in our patch-test guide.

Is calendula oil safe in pregnancy or while breastfeeding?

Not established. The EU monograph says safety in pregnancy and lactation has not been established and recommends against use for lack of data (EMA/HMPC, 2018), and Memorial Sloan Kettering advises avoiding it for the same reason (MSK). That is an absence of data, not a finding of harm. Ask your OB/GYN, midwife or lactation consultant.

Can I use it on a baby or small child?

The EU monograph says skin use under 6 years has not been established because adequate data are lacking (EMA/HMPC, 2018). We do not call our oil baby safe. Talk to your pediatrician, who can also look at the rash you are asking about.

Is it safe for dogs and cats?

The ASPCA lists Calendula officinalis as non-toxic to dogs and cats, but it rates the plant, not oils or salves (ASPCA). Pets lick what you put on them, and a hot spot, which is inflamed, infected skin, warrants a call to your veterinarian (PDSA). We do not sell or test our oil for pets; ask a vet.

Can I eat it?

Not ours. It is a cosmetic oil for external use. US food regulations list calendula among spices and natural flavorings generally recognized as safe for their intended use (21 CFR 182.10), which concerns flavoring and does not cover a skin oil. NIH's LactMed has no information on oral calendula during breastfeeding (LactMed). For a supplement, ask a pharmacist or physician.

Is there evidence that calendula helps with wounds or eczema?

Some, mostly on extracts and ointments, not infused oil. A 2019 systematic review of 14 studies (7 animal, 7 human) found faster early wound repair in the animal work and one human trial, mixed results for ulcers and burns, and asked for larger trials (Givol et al., Wound Repair Regen, 2019). EU assessors judged most trials small and methodologically weak (EMA/HMPC, 2018). We do not claim our oil does anything for a wound or a skin condition. A wound that is not closing or an eczema flare is for a doctor or dermatologist.

Is it comedogenic?

No human acne data tell us either way. Comedogenic scales rest largely on a rabbit-ear assay its authors called "not an ideal animal model" (Fulton et al., 1984), and a 2006 human patch study found finished products with "comedogenic" ingredients were not necessarily comedogenic (Draelos and DiNardo, 2006). Test a small area. See the comedogenic article.

After the bottle is open

How long does calendula oil last?

We do not publish a shelf life for ours; the bottle is dated and lot-numbered so you can see its age. Suppliers typically quote 24-36 months for sealed carrier oils and macerates stored cool and protected from light and air, while model-based predictions for some oils are much shorter (Gharby et al., Food Chem X, 2025). Ours has no added tocopherol, preservatives or stabilizers, so treat storage as part of the product. See our shelf-life FAQ.

How do I know it has gone off?

Smell it. Aldehydes from late-stage oxidation generate the characteristic odor of rancidity, and a low peroxide value alone can mislead in an oil that is already rancid (Cawood Scientific). When in doubt, replace it.

How should I store it?

Closed, cool and out of the light. Light, heat, oxygen and trace metals speed oxidation (Gharby et al., 2025), and a recent review recommends dark, airtight containers (Dash et al., Front Nutr, 2026). Ours comes in glass in every size.

Can I make it at home?

You can, with dried flowers. University of Maine Extension calls dried herbs the safest way to make infused oils because they lack the moisture Clostridium botulinum needs, and says fresh material needs food-processing review (UMaine Extension, Bulletin 4385). Time limits for homemade culinary oils differ by source (CDC says refrigerate garlic or herb oils and discard after 4 days; UMaine says use within three months), and none of them is written for skin oils. Start from our home infusion guide and keep batches small.

What sizes can I buy?

0.5 oz, 1 oz, 2 oz, 4 oz, 8 oz, 16 oz, 5 lb, 25 lb, 100 lb and 400 lb, all on the shop page. For formulation testing our bulk guide suggests 4 oz or 8 oz, then 16 oz for a first small run (bulk guide).

What we cannot answer

We do not know whether our oil will change your skin, and we have no customer-outcome data to offer. Our firsthand knowledge covers the flower, the drying, the infusion and the batch documents. For everything else, see a dermatologist, pediatrician, veterinarian or pharmacist as the question requires.

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