Horsetail - Equisetum Arvense 

The high levels of silica in horsetail assist in the production of collagen, an important factor in preventing signs of aging in the skin. 

Assists in easing infections. This herb has been observed to have anti-inflammatory, anti-fungal and antimicrobial properties, which may assist in easing various infections.

 

Source:  

Natural Alternative Remedy, Sixteen Horsetail Benefits