Silicon is a trace element. 

Your body requires silicon for the normal growth, development and integrity of hair, skin, nails, mucous membranes, arteries, bones, cartilage and connective tissue.

Biosil, 120 caps
#01009 120 Vegetarian Capsules
Estrogen for Women
#01894 30 Vegetarian Tablets
Biosil, 60 caps
#01004 60 Vegetarian Capsules
Bone Restore, 120 caps
#01726 120 Capsules