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HorsetailFind Products

Also indexed as:Equisetum arvense
Horsetail: Main Image© Steven Foster
Botanical names:
Equisetum arvense

Side Effects

Horsetail is generally considered safe. The only concern would be that the correct species of horsetail is used. Equisetum palustre is another species of horsetail, which contains toxic alkaloids and is a well-known livestock poison. Due to a lack of clear safety information, horsetail should be avoided during pregnancy and breast-feeding.

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The information presented by TraceGains is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires December 2025.