SILICEA PLUS SOFTGELS FEATURING CALCIUM, VITAMIN D AND MORE! A necessary component of collagen and connective tissue, Hubner Silicea plus caps contain 7 mg of Silicea plus Calcium and Biotin. Derived form quartz crystals and suspended in a colloidal preparation, they are easy to digest and absorb. Taken regularly, Silicea may help improve the appearance of your hair, skin and nails; and may provide protection against osteoporosis. Hubner Silicea caps provide you with all the benefits of silica gel plus calcium in a fast absorbing capsule. [