Overview
Horsetail (Equisetum arvense) is a prehistoric plant species belonging to the Equisetaceae family, dating back over 300 million years. It thrives in moist environments across Europe, Asia, and North America. Historically, it was used in traditional medicine for its astringent and diuretic properties. Modern applications leverage its high silica content, which supports connective tissue health, bone density, and skin elasticity. In B2B markets, horsetail is traded as a dried herb, liquid extract, or powdered supplement. Its demand is driven by the herbal medicine, nutraceutical, and cosmetic industries. Sustainable harvesting practices are critical due to its slow regeneration rate.
Physical and Chemical Properties
Horsetail’s unique structure features hollow, jointed stems with a high silica concentration, giving it a gritty texture. Silica, in the form of silicic acid, is its most studied component, contributing to 5–10% of its dry weight. The plant also contains flavonoids (e.g., quercetin), saponins (equisetonin), and trace alkaloids, though thiaminase (an enzyme that breaks down vitamin B1) raises safety concerns. Its solubility is limited to colloidal silica dispersion in water, making it suitable for infusions or alcohol-based extracts. The plant’s rough texture and mineral content make it a natural abrasive in polishes and cleansers.
Main Applications
Horsetail is primarily used in herbal medicine for its diuretic and anti-inflammatory effects, often prescribed for urinary tract infections and edema. Its silica content promotes collagen synthesis, benefiting hair, skin, and nail health—common in cosmetic serums and shampoos. Agriculturally, horsetail tea serves as a natural fungicide and silica-rich fertilizer. Industrial uses include metal polishing and wood finishing due to its abrasive properties. In B2B procurement, standardized extracts (e.g., 10% silica) are preferred for consistent quality in supplement manufacturing.
Safety and Storage
While horsetail is generally safe for short-term use, its thiaminase content can deplete vitamin B1, necessitating supplementation during prolonged intake. Contamination with toxic Equisetum palustre (marsh horsetail) must be avoided through rigorous botanical identification. Storage requires airtight containers in dry, cool conditions (below 25°C) to preserve bioactive compounds. Bulk buyers should request certificates of analysis for heavy metals (e.g., lead, cadmium) and microbial limits to meet regulatory standards in target markets.
B2B Procurement Guide
B2B buyers should prioritize suppliers with organic certifications (e.g., USDA, EU Organic) and transparent testing for silica content and contaminants. Dried horsetail is commonly traded in 20–25 kg bales, while extracts are sold in drums or totes (minimum order: 50 kg). Pricing varies by form: dried herb ($10–$15/kg), powdered extract ($20–$30/kg). Seasonal availability (harvest in late summer) may affect supply. Negotiate long-term contracts with growers in Eastern Europe or China, where cultivation is widespread.
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