Ingredient
Acorus Calamus Rhizome Extract
Acorus Calamus Rhizome Extract is flagged for pregnancy, breastfeeding, trying to conceive, postpartum, PCOS and general use. The concern behind the strongest flag is known teratogen and fetal development.
- Sweet Flag Extract
- Calamus Root Extract
- Acorus Extract
Verdict by profile
Truva checks every ingredient against six profiles. Jump to any of them for the full assessment.
- Strongest verdict
- Not Recommended
- Its verdict for pregnancy, the profile this one is worst in
- Profiles flagged
- 6 of 6
- Counting avoid, high risk and medium risk
- Irritancy
- 2 of 5
- Higher means more likely to sting or redden
Acorus Calamus Rhizome Extract and pregnancy
Not Recommended
- Known teratogen
- Fetal development
Acorus Calamus Rhizome Extract comes from sweet flag plant roots and contains beta-asarone, a compound with documented toxicity concerns. While traditionally used in herbal medicine, modern scientific analysis has identified serious safety issues with this plant extract. Beta-asarone, the primary constituent of concern in Acorus calamus, has demonstrated teratogenic effects (birth defects) and embryotoxicity in animal studies. The FDA banned this plant from food products specifically due to these reproductive and developmental toxicity concerns. Even in topical application, there is potential for skin absorption of beta-asarone. Studies have shown that beta-asarone can cross the placental barrier and affect fetal development, with documented risks including neural tube defects and developmental abnormalities. The FDA explicitly prohibits Acorus calamus in food and drug products, and medical professionals universally recommend that pregnant women avoid all forms of this plant. ACOG guidelines on herbal products during pregnancy emphasize avoiding ingredients with known toxic constituents like beta-asarone. Dermatologists advise pregnant patients to avoid cosmetics containing this extract due to the well-documented risks of its active compounds.
Acorus Calamus Rhizome Extract and breastfeeding
Not Recommended
- Passes into breast milk
- Infant exposure
Acorus Calamus Rhizome Extract contains beta-asarone, a lipophilic (fat-soluble) compound that can accumulate in body tissues and has been shown to transfer into breast milk in animal studies. The compound's chemical properties make it likely to concentrate in fatty tissues, including breast tissue and milk. Beta-asarone has demonstrated neurotoxicity and carcinogenic potential in research studies. The FDA's ban on Acorus calamus in food products extends to concerns about infant exposure through breast milk. Even small amounts of beta-asarone could pose risks to breastfed infants whose systems are not fully developed to metabolize potentially toxic compounds. Medical organizations recommend that breastfeeding mothers avoid herbal products containing Acorus calamus. The risks of beta-asarone exposure to infants through breast milk outweigh any potential cosmetic benefits. Dermatologists advise using alternative anti-inflammatory and antioxidant ingredients that have established safety profiles during lactation.
Acorus Calamus Rhizome Extract and postpartum
Caution Advised
For postpartum women not breastfeeding, Acorus Calamus Rhizome Extract presents fewer concerns than during pregnancy or lactation, but the inherent toxicity of beta-asarone remains a consideration. The carcinogenic potential documented in animal studies persists regardless of reproductive status. While the immediate reproductive concerns are absent, the long-term health implications of beta-asarone exposure suggest choosing alternative ingredients with better safety profiles. Given the wide availability of effective anti-inflammatory and antioxidant ingredients without carcinogenic concerns, most dermatologists would recommend avoiding this extract even postpartum.
Acorus Calamus Rhizome Extract and trying to conceive
Not Recommended
- Fertility effects
- Builds up in tissue
Women trying to conceive should avoid Acorus Calamus Rhizome Extract due to the teratogenic effects of beta-asarone documented in animal studies. Since the timing of conception can be uncertain, and beta-asarone may accumulate in tissues, it's prudent to discontinue use well before attempting pregnancy. Beta-asarone's lipophilic nature means it can accumulate in body tissues over time, potentially remaining in the system even after discontinuing use. The same developmental toxicity concerns that make this ingredient dangerous during pregnancy also make it inadvisable during the preconception period. Medical professionals recommend avoiding this ingredient for at least several months before trying to conceive to allow for complete clearance from body tissues.
Acorus Calamus Rhizome Extract and PCOS
Caution Advised
- Interferes with hormones
Acorus Calamus Rhizome Extract has traditional use as an anti-inflammatory agent, which could theoretically benefit inflammatory aspects of PCOS. However, the presence of beta-asarone raises concerns that outweigh potential benefits. Some research suggests that Acorus calamus compounds may have effects on neurotransmitters and potentially on hormonal signaling pathways, though specific effects on androgens or insulin are not well-documented. The general toxicity profile of beta-asarone makes this ingredient a poor choice when safer anti-inflammatory options exist. Women with PCOS should avoid this ingredient due to its documented toxicity concerns and the availability of numerous safer alternatives for addressing inflammation and other PCOS-related skin concerns. Ingredients like niacinamide, azelaic acid, and green tea extract offer anti-inflammatory benefits without the safety concerns associated with Acorus calamus.
Acorus Calamus Rhizome Extract and general use
Caution Advised
- Carcinogen concern
Acorus Calamus Rhizome Extract contains beta-asarone, a compound that has been classified as a potential carcinogen based on animal studies. The FDA banned this plant from food products in the 1960s due to these carcinogenic concerns, and while topical use in cosmetics is not explicitly prohibited, questions about safety remain. Research has shown that beta-asarone content varies significantly depending on the plant variety and geographic origin. North American varieties contain less beta-asarone than Asian varieties, but most cosmetic products don't specify which variety is used. Studies demonstrate that beta-asarone can be absorbed through the skin, though absorption rates are lower than with oral consumption. The EU Cosmetics Regulation limits beta-asarone content in cosmetic products, and some manufacturers use varieties with naturally lower beta-asarone levels or remove it during processing. However, given the documented carcinogenic potential and the availability of numerous alternative anti-inflammatory and antioxidant ingredients with better safety profiles, many dermatologists and toxicologists recommend choosing products without Acorus calamus extract. For general consumers without specific contraindications, occasional use in cosmetics is unlikely to pose significant risk, but regular, long-term use is not advisable.
Everything else flagged for the same profiles
Related ingredients
Ingredients suggested in place of Acorus Calamus Rhizome Extract, each one with its own page here.
Ingredients that raise the same concerns.
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 .
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