- Equisetaceae
- Aerial parts
- Europe · North America
- Dried aerial parts, for infusion
Horsetail
Equisetum arvense
Select sizeThe plant
Horsetail has jointed green stems with fine side branches. The green above-ground parts are the herbal material.
What's in it
Silica is a silicon-containing mineral material present in the stems. Flavonoids are another group of natural plant compounds.
How it works
Urinary tradition: Horsetail is traditionally used to encourage urine flow. Urine carries water and dissolved waste from the kidneys through the urinary tract. Herbal meaning: Diuretic means encouraging urine production. This explains horsetail’s traditional place in urinary preparations used with suitable fluid intake.
In the tradition
A longstanding European herbal ingredient.
Its jointed stems give it a miniature bottle-brush appearance.
- 1Steep 1–2 tsp dried horsetail in 250ml hot water for 10–15 mins.
- 2Drink 1–2 cups daily.
- 3Mild, slightly grassy flavour.
- 4For best mineral absorption, use with vitamin C or rosehip.
- 5Often combined with nettle for a hair and nail strength blend.
Storage: Store in an airtight container in a cool, dry place away from direct sunlight. Best used within 12–18 months.
- Avoid with conditions requiring fluid restriction, especially heart or kidney disease.
- Confirm Equisetum arvense; check pregnancy, breastfeeding and medicines.
- Kidney disease: check with your doctor (diuretic action).
- On diuretics or lithium: may interact.
- Thiamine deficiency: contains thiaminase; avoid long-term use without B1 supplementation.
- Nicotine sensitivity: contains trace nicotine alkaloids.
A food supplement, not a substitute for a varied diet. Speak to your doctor before use if you are pregnant, breastfeeding or taking medication.
Common questions
How do I prepare horsetail?
Horsetail is steeped as an infusion. Steep 1–2 tsp dried horsetail in 250ml hot water for 10–15 mins. Full directions are in the How to use panel above. See also: Infusion vs decoction.
What is horsetail?
Horsetail (Equisetum arvense) belongs to the Equisetaceae family; the aerial parts are used. Origin: Europe, North America. A distinctive ancient-looking plant traditionally used for urinary wellbeing.
How should I store dried horsetail?
Store in an airtight container in a cool, dry place away from direct sunlight. Best used within 12–18 months.
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