Nepeta Cataria Oil

Nepeta Cataria Oil and pregnancy

Not Recommended

• Stimulates the uterus
• Absorbed into the body

Nepeta cataria oil (catnip oil) is an essential oil used for fragrance in cosmetic products. Essential oils are concentrated plant extracts containing volatile organic compounds that can be absorbed through the skin. Catnip has been traditionally used in herbal medicine and contains nepetalactone as its primary active compound. The primary concern with catnip oil during pregnancy stems from its traditional use as an emmenagogue (menstruation-inducing agent) in herbal medicine. Catnip has historically been used to stimulate delayed menstruation, suggesting potential uterine-stimulating properties. While specific studies on topical use during pregnancy are lacking, the concern is that essential oils can be absorbed systemically through the skin, potentially reaching the fetus. Most aromatherapists and herbalists advise against using catnip in any form during pregnancy due to this emmenagogue effect and the theoretical risk of inducing contractions or affecting pregnancy. ACOG recommends caution with essential oils during pregnancy, particularly those with traditional uses affecting the uterus. Most obstetricians and aromatherapy practitioners recommend avoiding catnip oil during pregnancy as a precautionary measure. The National Association for Holistic Aromatherapy (NAHA) lists catnip among essential oils to avoid during pregnancy.

Nepeta Cataria Oil and breastfeeding

Caution Advised

• Passes into breast milk
• Infant exposure

Catnip oil is a lipophilic (fat-soluble) essential oil, which raises concerns during breastfeeding as fat-soluble compounds can potentially transfer into breast milk. Essential oils applied topically can be absorbed through the skin and distributed systemically, though the extent of absorption varies based on the oil's chemistry and the area of application. While specific data on catnip oil transfer to breast milk is lacking, the general recommendation from lactation consultants and aromatherapists is to use caution with essential oils during breastfeeding. The volatile compounds in essential oils can potentially affect milk composition or infant exposure through skin contact during breastfeeding. Additionally, catnip's traditional use as a sedative in herbal medicine raises theoretical concerns about whether compounds could affect infant alertness if transferred through milk. Most lactation experts recommend avoiding direct application of essential oils to the breast area and limiting overall essential oil use during breastfeeding. If catnip oil-containing products are used, they should be applied to areas away from the breast and allowed to fully absorb before breastfeeding. Many practitioners suggest postponing use of non-essential essential oils until after weaning as a conservative approach.

Nepeta Cataria Oil and postpartum

Safe to Use

• Irritant

For postpartum women who are not breastfeeding, catnip oil presents primarily dermatological concerns rather than reproductive ones. As an essential oil, it can cause skin irritation or allergic reactions in sensitive individuals, but there are no specific postpartum contraindications once breastfeeding is not a factor. Women recovering from pregnancy who are not breastfeeding can use catnip oil-containing products with the same precautions as the general population, primarily watching for signs of skin sensitivity or irritation. The traditional sedative properties attributed to catnip are not a concern in topical cosmetic applications.

Nepeta Cataria Oil and trying to conceive

Not Recommended

• Stimulates the uterus

For women trying to conceive, catnip oil raises similar concerns as during pregnancy due to its traditional use as an emmenagogue. The theoretical risk is that uterine-stimulating effects could interfere with implantation during the critical period after ovulation, though no studies have specifically examined this with topical catnip oil use. Many fertility specialists and herbalists recommend that women trying to conceive avoid herbs and essential oils with emmenagogue properties, particularly during the two-week wait after ovulation when a fertilized egg would be implanting. As a precautionary measure, women actively trying to conceive may choose to avoid catnip oil-containing products or discontinue use after ovulation each cycle.

Nepeta Cataria Oil and PCOS

Safe to Use

Catnip oil does not appear to have significant hormonal effects that would be concerning for women with PCOS. There is no evidence that it contains phytoestrogens, anti-androgens, or compounds that would interfere with insulin sensitivity or androgen metabolism, which are the primary hormonal concerns for PCOS management. The main considerations for PCOS patients using catnip oil are the same as for the general population: potential for skin irritation or allergic reactions, particularly since PCOS-associated hormonal fluctuations can sometimes make skin more sensitive. The ingredient does not offer specific benefits for PCOS-related skin concerns like acne or excess oil production. Women with PCOS can use catnip oil in cosmetic products without concerns about hormonal interference. However, as an essential oil and fragrance ingredient, it may be irritating to sensitive or acne-prone skin, which is common in PCOS. Those with reactive skin may wish to choose fragrance-free alternatives.

Nepeta Cataria Oil and general use

Safe to Use

• Common allergen
• Irritant

For the general population, catnip oil is primarily used as a fragrance ingredient in cosmetic products. As with most essential oils, the main concerns are potential for allergic reactions and skin irritation, particularly in individuals with sensitive skin or fragrance allergies. The oil should be properly diluted in cosmetic formulations to minimize these risks. Essential oils can cause contact dermatitis, and oxidized essential oils are particularly prone to causing sensitization. Catnip oil contains terpenes and other volatile compounds that can be irritating or allergenic. Individuals with known sensitivities to fragrances or the Lamiaceae (mint) family should exercise caution with products containing this ingredient. For most people without sensitive skin or fragrance allergies, catnip oil in properly formulated cosmetic products poses minimal risk when used as intended. However, given its function as a fragrance ingredient rather than an active beneficial component, those with reactive skin or fragrance sensitivities may prefer fragrance-free alternatives. Patch testing is advisable before widespread use.

Everything else flagged for the same profiles

• Flagged in pregnancy
• Flagged in trying to conceive
• Flagged in breastfeeding

Related ingredients

Ingredients that raise the same concerns.

• Eugenia Caryophyllus Bud ExtractStimulates the uterus, Infant exposure, Passes into breast milk
• Cinnamomum Cassia Bark/Syzgium Aromaticum Bud/Rosmarinus Officinalis Leaf/Thymus Vulgaris Leaf OilStimulates the uterus, Infant exposure, Passes into breast milk
• Chrysanthemum Parthenium Flower/Leaf/Stem JuiceStimulates the uterus, Common allergen, Absorbed into the body
• Myrrh Resin ExtractStimulates the uterus
• Juniperus Mexicana OilInfant exposure, Passes into breast milk, Irritant
• Ocimum Basilicum OilInfant exposure, Passes into breast milk, Irritant

Where this came from

Truva summarises published guidance from bodies including ACOG, the FDA, the EU SCCS and the Cosmetic Ingredient Review. It has no access to your medical history and it is not a substitute for your doctor, dermatologist or midwife. These assessments have not been reviewed by a clinician, and nothing here is a diagnosis or a prescription. If you are pregnant, breastfeeding or being treated for PCOS, take the ingredient list to the person looking after you.

Assessment last pulled from the ingredient database on 15 September 2026.