we are the manufacture in this field, so we will have the most advantage in price and quality,if you are interested,contact me. Active Ingredient:Silica specification:7% Test Method:UV Appearance:Yellow Brown Mol. Formula:H2O3Si CAS NO:1343-98-2 Mol. Weight:78.09 Properties and effects:Horsetail (Shavegrass) is valued for its high content of mineral; Especially Silica which makes it of value in promoting healing and new growth in connective tissue: Osteoporosis, Arthritis, cartilage degeneration, lung, skin, and kidney tissue degeneration. Restrains infection and discharges. Bladder infection, Interstitial cystitis. Neurogenic bladder, difficult or scanty urination. Incontinence. Bladder discharges, Prostatitis. Stomach ulcers. Leg and skin ulcers and degenerative skin conditions (internal and external). Poor nails, hair. Degenerative lung disease. Field horsetail we are the manufacture in this field, so we will have the most advantage in price and quality,if you are interested,contact me. Active Ingredient:Silica specification:7% Test Method:UV Appearance:Yellow Brown Mol. Formula:H2O3Si CAS NO:1343-98-2 Mol. Weight:78.09 Properties and effects:Horsetail (Shavegrass) is valued for its high content of mineral; Especially Silica which makes it of value in promoting healing and new growth in connective tissue: Osteoporosis, Arthritis, cartilage degeneration, lung, skin, and kidney tissue degeneration. Restrains infection and discharges. Bladder infection, Interstitial cystitis. Neurogenic bladder, difficult or scanty urination. Incontinence. Bladder discharges, Prostatitis. Stomach ulcers. Leg and skin ulcers and degenerative skin conditions (internal and external). Poor nails, hair. Degenerative lung disease.