Horsetail contains large amounts of silica and thus helps facilitate the use of calcium in the body, helping with flexibility and mobility and aiding in circulation. It is a great herb for the regeneration of connective tissue, improving its strength and elasticity. It also promotes healthy hair, skin and nail and helps in the healing of broken bones and strengthens fingernails. It is useful in eye, ear, nose, throat and glandular disorders and is beneficial as a wash for swelling eyelids. Horsetail has also been used as an excellent clotting agent that stops nose bleeds, reduces coughing up of blood and accelerates the healing of wounds.
Though its historic use has been for diabetes, it is an effective diuretic and shrinks inflamed mucosal tissue, particularly the prostate. Its uses include arthritis, bladder problems, internal bleeding, circulatory problems, cardiovascular disease, diabetes, glandular disorders, hair loss, kidney stones, weak or brittle nails, bronchitis, gallbladder disorders, osteoporosis, Rickets, Edema, muscle cramps, nervous tension (great as a bath salt), nosebleeds, parasites, urinary ulcers, and suppressed urination.