Calendula: benefits, side effects, doses and interactions


Calendula, also known as Calendula officinalis, is a calendula that has historically been used to treat many different ailments, primarily affecting the skin, such as wound healing. The medicinal part of the plant is in a beautiful, rich orange and yellow flower.

The colored petals are rich in flavonoids, natural compounds found in vegetables and fruits, which have been shown to exert anti-inflammatory, antithrombogenic, antidiabetic, antitumor and neuroprotective effects through various mechanisms of action in vitro and in animals. Models.


Calendula is a member of the Asteraceae / Asteraceae family and comes from the Asteraceae order. Their places of origin are in Canada and the lower forty-eight states in the United States, according to the USDA. Calendula is an annual plant that grows easily in medium, moderately fertile, well-drained soils in full sun. It can be planted in flower beds, curbs, summer cabins, cut gardens, or in pots / containers. The fragrant leaves attract butterflies and the petals can be eaten and used for cooking.

Calendula oil is made by infusing flowers in a carrier oil (such as olive oil or coconut oil). The oil can be used alone or in ointments, balms, creams, or lotions. It can also be produced in the form of a tincture, tea, or capsules. Calendula petals have been used decoratively in flower arrangements and potpourri mixes. Don't confuse marigold with ornamental marigolds of the genus Tagetes, which are commonly grown in orchards.

Calendula common names

  • Calendula
  • Marigold english garden
  • Scottish marigolds
  • Fleur de calendule

What is calendula used for?

Calendula has been used to treat various skin conditions, as well as infections and fungi. Research shows that calendula may be effective in treating diaper rash, wounds, vaginal yeast infections, and other skin conditions. Calendula has also been used to relieve pain and inflammation. It has also been used as an adjunct in cancer treatment, especially for treatment-related side effects (such as radiation).

Some research suggests that calendula may be helpful as a sunscreen. Others use calendula simply as a moisturizer.

While there is some research to suggest positive effects of calendula, the long-term use of calendula has not been studied and more research is needed. Always check with your healthcare professional before starting treatment or taking supplements.

How does it work

The active ingredients in calendula flower are natural chemicals such as triterpenic saponins (oleanolic acid glycosides), triterpenic alcohols (α-, β-amyrins, faradiol), and flavonoids (quercetin and isorhamnetin).

The photoprotective effect of topical gel formulations is believed to be associated with improved collagen synthesis in subepidermal connective tissue. The chemicals in calendula are believed to accelerate the growth of new tissue during wound healing and reduce inflammation.

Wounds and bedsores

Animal studies have shown a link between calendula consumption and better wound health. And the people? A recent study published in the Journal of Family Medicine and Primary Care examined the efficacy of calendula ointment for cesarean section in 72 women.

The researchers found that, compared to standard hospital treatment, women who were treated with calendula ointment had faster healing times. They reported that their incisions were less red and less swollen.

In a 2016 study published in The Journal of Wound Care, researchers used calendula officinalis extract to treat people with venous leg ulcers. Their results showed that those who were treated with calendula had a "cure rate per week" of 7.4%, compared to 1.7% in the control group. Furthermore, the researchers reported that "no side effects were observed during treatment with calendula officinalis extract."

Early research suggests that using a calendula spray in addition to standard care and hygiene can prevent infection and reduce odor in people with chronic foot ulcers from diabetes .

Eczema, diaper rash, and other skin conditions.

Calendula is widely used to treat eczema and dermatitis ; however, research on calendula for eczema and dermatitis is limited. Since the plant has anti-inflammatory properties, applying it to the skin can reduce inflammation. However, there is no real clinical evidence to support its use for eczema.

In fact, the use of calendula can be irritating to young children with severe eczema, especially if they are allergic to ragweed, chamomile, calendula, or any other plant in this family.

The use of calendula in children may be contraindicated, so always consult your doctor before starting.

Using calendula creams for diaper rash may be more effective than some treatments, such as aloe vera gel. However, research shows that calendula is inferior to bentonite solution. The researchers found that when the babies were treated with bentonite, 88 percent of the lesions in the bentonite group began to improve within the first six hours, compared with 54 percent in the calendula group.

Bacterial vaginosis and vaginal yeast infections

The researchers compared the use of calendula ointment with metronidazole (a common drug used to treat bacterial vaginosis) in 80 women diagnosed with bacterial vaginosis . They found that after a week of intervention, both groups of women were cured of bacterial vaginosis and neither of them had any side effects.

They concluded that for those women who would not want to take medication to treat bacterial vaginosis, calendula ointment may be a viable option. Regarding its effectiveness in treating yeast infections, a study published in the journal Women and Health found that calendula cream was effective in treating vaginal yeast infections, but had a delayed effect compared to standard medications. (clotrimazole).

While there have been claims that calendula can be used to treat menstruation, there is no additional evidence to support such use.

Calendula as a sunscreen

Calendula's effectiveness as a sunscreen has been tested in vitro (i.e., in a Petri dish or test tube) . The idea behind this study is that calendula's cell rejuvenating properties can also be used as a sunscreen. More research is needed in this area. Therefore, it is advisable to use an approved UV protection sunscreen.

Radiation dermatitis

There is mixed research on whether applying calendula to the skin can reduce radiation dermatitis (skin irritation) after radiation therapy. It may not be better than petroleum jelly (petroleum jelly), but more research is needed.

Possible side effects.

You should not use calendula if you are allergic to ragweed, chamomile, calendula, or Asteraceae / Asteraceae. This can cause an allergic reaction.

Pregnant or lactating women should also avoid using calendula, as consuming calendula can affect hormone levels and cause menstruation .

Anyone who is taking medication or scheduled for surgery should first discuss the use of calendula with their doctor.

Get Drug Information / Anastasia Tretyak

Dosage and preparation

It is difficult to come up with a standard dose of calendula considering that it is not FDA approved. Depending on the form and what you are using it for, the dose of calendula will vary. Be sure to ask your doctor or healthcare provider before starting any new supplement.

If you choose to grow your own calendula plant, you can get the full benefits of the plant by drying its petals. The dried petals (which can be made by picking a flower and placing it on a paper towel away from the sun) can be used to make tea and make oils. If you are making calendula tea, you can also use fresh flowers as a decoration. To make tea you need:

  • Bring the water to a boil
  • add dried flowers (most people use two teaspoons) to a tea infuser or kettle
  • cover the leaves with hot water and let it steep for 10 minutes
  • Strain and add the flavor you want, such as cinnamon, vanilla, honey, etc.


Store calendula products in a dark, dry place away from moisture. If you buy a marigold product from a store, check the expiration date on the packaging where you buy it.

If you are storing dried petals, be sure to use an airtight container. If you've made a calendula oil, tincture, or cream, be sure to store it in an airtight container in a cool, dry place.

What to look for

Companies that claim that calendula is effective in treating certain health problems will be required to submit a disclaimer stating that "these claims have not been approved by the FDA." The FDA has not approved the therapeutic claims for calendula.

Selecting products from a reliable source is important as it avoids handling or adding harsh chemicals or substances. Look for organic or third-party certified products whenever possible.

Instead of buying calendula products, you can also grow calendula at home on your own. If you choose to do this, you can buy your own seeds and use calendula flowers to make tea and oil infusions.

Other questions

Can I eat the petals?

Yes, the marigold petals are edible. Some people like to use them as a garnish. The flavor profile is considered moderately sweet and spicy.

Is calendula used in beauty products?

Yes, the petals were used as dyes and the oil was used in perfumery.

Can I use it as a fabric dye ?

Yes, it was used as a natural yellow dye to dye wool and other garments.

Get the word of drug information

Calendula officinalis is an herb that is used for various diseases. To date, most studies show the benefits of calendula for skin health. Its anti-inflammatory properties can make it effective in wound healing. Calendula can be added to lotions, balms, or used in teas, oils, and jewelry. If you prefer to make the infusion yourself, you can do so by drying the petals of a homegrown calendula plant.

Note that calendula is not FDA approved and you should consult your doctor before using it. People allergic to ragweed, chamomile, calendula, or Asteraceae / Asteraceae should avoid using calendula.

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