Horsetail (Equisetum arvense)

Urinary System Support: Horsetail's long-standing reputation as a diuretic is supported by both traditional use and scientific studies. It's traditionally employed for urinary tract infections, cystitis, urethritis, urinary stones, prostate and bladder concerns (Grieve, 1971; McIntyre, 2019), and some research suggests it may be as effective as certain pharmaceutical diuretics without disrupting electrolyte balance (Carneiro et al., 2014). Its astringent actions further contribute to its use in conditions like incontinence, prolapse and bedwetting in children (McIntyre, 2019). A review by Carneiro et al. (2019) highlighted promising clinical trials supporting horsetail's use in urinary health.

Bone and Joint Health: The high soluble silica content of horsetail (which is readily absorbed) is considered crucial for muscle and bone health (Labun et al., 2013). Studies indicate it might promote bone mineralization and potentially mitigate the risk of osteoporosis (Kotwal & Badole, 2016), while traditional use suggests possible benefits for arthritis and joint health. It may support the regeneration of cartilage and other connective tissue and increase strength and elasticity (McIntyre, 2019).

Skin and Hair Health: Horsetail's topical application for skin and hair draws upon its astringent, vulnerary, and mineral-rich nature. According to McIntyre (2019), horsetail is strengthening for teeth and brittle nails, for hair and to increase skin elasticity. Traditional uses encompass wound healing, wrinkle reduction, acne treatment, and hair growth promotion.

Anti-inflammatory Effects: Some research suggests horsetail may have anti-inflammatory activity, potentially benefiting conditions like rheumatoid arthritis (Gründemann et al., 2014; Jiang et al., 2014).

Wound Healing: Horsetail's historical use as a vulnerary indicates its potential to promote wound healing (Grieve, 1971). Its astringent and antimicrobial properties could be helpful in treating minor wounds, cuts and skin irritations (McIntrye, 2019). A clinical trial even found horsetail ointment effective in promoting wound healing and pain relief after episiotomy (Asgharikhatooni et al., 2015).

Other Potential Benefits: Ongoing research explores horsetail's broader therapeutic potential, including its antimicrobial activity against various pathogens (Ferrazano et al., 2013; Radulović et al., 2006), potential antioxidant and hepatoprotective effects, and possible antidiabetic properties (Carneiro et al., 2019).