Common name:




Parts used:

Aerial parts.


 Silica 1.2- 6.9%, silicic acid, saponins (equisetonin, galuteolin), phytosterols (beta-sitosterol, compestrol, isofucosterol and cholesterol), trace amounts of alkaloids (nicotine, palustrine, palustrinine), thiaminaze, Aconitinic acid, minerals manganese, potassium, sulphur, magnesium, zinc, sodium, selenium, tannins, flavonoids such as quercetin.

Main actions:

Diuretic. Astringent. Vulnerary.

Other Actions:

Diuretic, vulnerary, Genito urinary astringent, anti-haemorrhagic, white blood cell stimulator ( prophylactic – causing mild leucocytosis) , immune enhancer-immunomodulator , cleansing action, antirheumatic, connective tissue action, increases coagulability of the blood, anti-atheroma., locally styptic, vulnerary, lithotropic.


2 – 5ml TID


Horsetail breaks down vitamin B1 (Thiamine) and should generally be taken with a vitamin B supplement (Andrew Chevallier).

Because of its high mineral content, take it with breaks (1 month on, 1 week break- Bartram) to avoid straining kidneys.