Blending Calendula Oil With Other Oils: What Changes

You do not need to mix our calendula oil with another oil, and there is no published ratio that says you should. It is already calendula extract in a carrier oil, so a blend is a second product, and the oil you add decides how that product feels and how long it lasts. If you want to blend anyway, this is how we would choose the partner and what we would refuse to promise.

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 →

Start with what is in the bottle

We make our oil in two stages: calendula is extracted on its own, then the extract is brought into a carrier oil. We do not name the carrier on the website; the batch paperwork does, and you can get it by emailing the lot number to [email protected]. That is the first thing to know before you buy a second oil. A partner oil with a similar fatty acid profile will behave like a thinner version of what you have. A very different one gives you a mixture whose properties are set by both.

The ratio nobody can give you

Recipe pages quote exact proportions of calendula oil to carrier oil. We could not find a source behind any of them. The numbers that do exist describe something else: the EU herbal monograph lists an oil extract of calendula flowers at 1:10 in "a fatty vegetable oil e.g. olive oil", which is flower to oil by weight for making the extract, not a blend ratio (EMA/HMPC, 2018), and a 2005 laboratory comparison got its highest carotene content (57.5 mg/kg as beta-carotene) from flowers macerated 72 hours at 1:5 by weight in olive oil (Novkovic et al., Hemijska industrija, 2005). Neither tells you what share of finished oil should be calendula oil. We will not invent one. Start from the question you actually have: do you want the feel of a different oil, or do you want to stretch a bottle? The first is a legitimate reason. The second dilutes whatever the calendula contributes, by an amount nobody has measured.

The least stable oil in the mix sets the shelf life

This is the rule we would put above all others. Oxidation is driven by light, heat, oxygen and trace metals, and it depends strongly on unsaturation: in one review's table of relative oxidation rates for C18 fatty acids, stearic acid scores 1, oleic 10, linoleic 100 and linolenic 150 (Gharby et al., Food Chemistry X, 2025). Those are pure-acid values at 100 C, so read them as ordering, not as months. In a 2026 accelerated test of four oils, jojoba resisted oxidation longest, then olive, then sunflower, with rosehip shortest (Fagoaga et al., Antioxidants, 2026). Reasoning from this, mixing a fresh, stable oil with a polyunsaturated one gives you a blend that goes off on the schedule of the polyunsaturated part. Our oil has no added tocopherol, preservative or stabilizer, so keep any blend in dark glass, cool, and make small amounts. A commercial calendula macerate's data sheet lists 0.2% added tocopherol and 36 months stored cool and protected from air and light (Golgemma/Biolandes, FB026, 2025); a home blend has no such data behind it.

What the common partners actually are

Composition values below are typical-sample reference figures from USDA FoodData Central (SR Legacy) unless another source is named. They describe food-grade oils, not any particular cosmetic lot.

OilWhat it isWhat it means for a blend
Sunflower, high-linoleicAbout 66% linoleic, 20% oleicLight, and in the more oxidation-prone group.
Sunflower, high-oleicAbout 83% oleic, under 4% linoleicMore stable than the type above. "Sunflower oil" on a label can mean either.
OliveAbout 71% oleic, 10% linoleic (USDA); extra virgin oleic ranges 55-83% (Abdalla et al., 2024)The oil the EU monograph names for calendula extracts. Varies by source.
Sweet almondAbout 69% oleic, 17% linoleicMostly oleic, like olive.
GrapeseedAbout 70% linoleicHighly unsaturated, so the shorter-lived choice.
Hemp seedRoughly half linoleic, 10-14% alpha-linolenic in one study (Floares Oarga et al., 2025)Oxidation-prone; small batches only.
RosehipSeven commercial oils split into linoleic-dominant and alpha-linolenic-dominant groups (Nikolova et al., 2025)Composition varies between bottles, and it had the shortest oxidation time of four oils tested.
JojobaA liquid wax of wax esters, not a triglyceride oil (Abdalla et al., 2024)Most oxidation-resistant in the 2026 test above. See our jojoba comparison.
Coconut, regularAbout 40-48% lauric acid; solid below room temperature (USDA; Abdalla et al., 2024)Changes the texture of a blend.
"Fractionated" coconutMedium-chain triglycerides, mainly caprylic and capric acids (Heidt et al., Nutrients, 2026)Liquid, nearly colourless. The trade term "fractionated" is usually taken to mean this; we did not verify it against a cosmetic data sheet.

We left out argan and several others because we found no composition source we could cite. For butters, shea is mostly stearic and oleic acid in the one refined-grade data sheet we read, and it will firm a blend (DistrEbution data sheet, 2025); see our shea comparison.

Claims about carriers we would not repeat

Three come up constantly. "Non-comedogenic" ratings rest largely on rabbit-ear assays that the original author called "not an ideal animal model", and a small human patch study found that finished products containing ingredients rated comedogenic are not necessarily comedogenic (Fulton et al., 1984; Draelos and DiNardo, 2006). Claims that a carrier "carries calendula deeper into the skin" are not supported by any source in our review. And "cold-pressed calendula oil" is not a thing: pressing is for seeds, nuts and fruit, while calendula petals are infused (more here). One carrier is worth avoiding by name: the EU assessment report says peanut oil, mentioned in older literature for calendula oil, "is not recommended because of the higher probability of adverse reactions" (EMA/HMPC assessment report, 2018).

If you also add essential oils

That is a separate decision with its own limits. The Tisserand Institute lists essential-oil dilutions of 0.5-1.2% for facial products, 1-3% for body oils and 0.2-1% for sensitive or impaired skin (Tisserand Institute), while the National Association for Holistic Aromatherapy says most blends fall between 1 and 5% and uses 0.5-2.5% for young children (NAHA). The two ranges differ, so check which you are following. Expressed citrus rind oils can be phototoxic, whereas distilled citrus oils are not, and sweet orange is generally thought not to be phototoxic even when expressed (Tisserand Institute). Our own signature blend pairs calendula oil with sweet orange; the Sunmeadow article explains it. Do not put essential oils on cats; veterinary toxicologists warn they can be swallowed during grooming (Pet Poison Helpline).

Limits

Everything above is about the oil as a cosmetic ingredient. Calendula is a daisy-family plant, so patch test any blend for a week on the inner forearm before using it widely, and skip it if you react or if a dermatologist has told you to avoid Asteraceae. The EU monograph does not recommend skin use under age 6 or use in pregnancy and breastfeeding, because adequate data are lacking (EMA/HMPC, 2018, linked above). If you want to infuse your own oil rather than blend ours, see the infusion article.

If a blend is what you want, make a small batch, label it with the date and the lot number of the calendula oil you used, and judge it by how it smells and feels in the first weeks. It is a new product, and it should be treated as one.

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