DIY Calendula Oil Hair Rinse for Shine & Softness

"Calendula oil hair rinse" combines two things that do not belong together. A rinse is water; our calendula oil is an oil. Stirring one into the other gives you a short-lived mixture that separates, and a bottle of water with plant material in it is the one kind of home-made product that can go wrong quietly. So this page splits the idea into the two honest versions: a fresh water infusion you make and discard, or the oil used as an oil.

Calendula oil bottle

Calendula Oil

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

From $13.99

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The category problem

We make a single product, an infused oil: calendula extract brought into a carrier oil, with nothing else added. It is an oil, not a water-based liquid, and reasoning from chemistry we would not expect it to carry the water-soluble parts of a tea (we have no analysis of that). A hair rinse in the usual sense, a thin liquid poured over wet hair, would use a water infusion of flowers instead. Our oil is not the ingredient for that, and we would rather say so than hand you a recipe that uses it badly.

As for the promise in the title, we searched PubMed for calendula alongside hair, alopecia, scalp and dandruff and found no relevant study. Nothing we could cite shows that calendula in any form changes the shine or softness of hair. Shine and softness depend on what is left on the hair, which is true of any oil or rinse, and that is reasoning rather than a trial result.

Version one: a water infusion, made fresh and thrown away

The only water-based calendula preparation with a regulatory record is a warm infusion, and its use is not for hair. The EU herbal monograph lists 1-2 g of herbal substance in 150 ml of water, the still warm infusion used to prepare impregnated dressings for skin (EMA/HMPC, 2018), as a traditional preparation made for use at once. It is a listing for skin and rests on long-standing use rather than trials. It is not a hair-care finding, and nothing there suggests keeping the liquid.

That last point is the safety issue. A 2018 review states that cosmetics containing water require preservation against microbial contamination, verified for example by challenge testing (Halla et al.). A 1995 review put the principle in one line: the only limit to microbial life is the availability of liquid water (Brannan, J Soc Cosmet Chem). FDA says contaminated cosmetics can cause serious infections, and that raw materials, water and ineffective preservation are sources. Reasoning from those sources, the practical rule for a flower-water rinse is to make only what you will use in that shower, discard the rest, and never bottle it. A rinse that sits in the bathroom for a week is a product that nobody has tested.

You would need dried flowers for this. We make one product, the oil, so we do not sell them; we buy dried flowers and make oil. If you want to infuse flowers in water, buy a dried herb from a source you trust. We can tell you what we look for when we choose ours: petals separated by hand from sound, whole dried flower heads rather than broken florets, dried by traditional methods without industrial heat. That is our process, not a promise about anyone else's product.

Version two: the oil, used as an oil

If what you want is something on your hair for how it feels, an oil is a normal way to get it, and ours can be one. Without any trial data to lean on, here is how we would approach it, flagged as reasoning:

The usual add-ins

Recipes for "rinses" often add vinegar, essential oils or aloe. We have no source in our library for any of these doing something to hair, and each one adds a variable if your scalp reacts. We would not combine several at once for a first try. We cover hair-and-skin pH in the pH article; the short version is that pH is a property of water-based liquids, which is another reason an oil on its own does not have one in the usual sense.

Who should skip it

Skip our oil if you know you react to daisy-family plants. The EU committee also says that skin use in children under 6 is not recommended because adequate data are lacking, and that safety in pregnancy and breastfeeding has not been established. Those are statements about missing data for licensed herbal medicines, not findings of harm, but they are the reason we would not use this on a small child's hair without asking a pediatrician, or in pregnancy without asking an OB/GYN or midwife.

Where to get proper hair advice

Scalp that itches, flakes, burns, or hair that is breaking or falling out in clumps is a matter for a dermatologist or a physician, not a rinse. Our longer pieces on hair are the hair mask article and the scalp article. For storage of the oil between uses, see the storage guide; the bottle is dated and lot-numbered, and the batch paperwork, including the carrier oil, is available if you email the lot number to [email protected].

If shine and softness are the goal, the cleaner choice is between a fresh single-use water rinse and a few drops of oil on dry ends, rather than a blend of the two that has to be stored. We make the oil; we do not have evidence that either routine does anything special for hair, and we would rather you know that going in.

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