Horsetail Extract 400mg by Solaray 60 Capsule Horsetail is well known for its mineral content specifically silica which is concentrated in the shoots of the plant. Solaray Guaranteed Potency Horsetail provides a consistent level of 10 silica and is extracted from the shoots of the plant. Size 60ct 400mg Directions As a dietary supplement take one capsule twice daily with meals or a glass of water. Serving Size 1 Capsule 60 Servings per container Ingredients Amount per serving Daily Value + Horsetail (Equisteum arvense) (aerial) 100 mg Horsetail (Equisetum arvense) (aerial extract) (Guaranteed 40 mg 10 silica) 400 mg Key to Ingredients Daily Value not established. + Percent Daily Value is based on a 2 000 calorie diet. Values differ depending on age Values differ depending on age Other Ingredients Gelatin Capsule Cellulose and Magnesium Stearate Other See product label for more information.