Silicon a component of silica gives structure to all living things throughout the plant and animal kingdoms. It is essential to the human body and is found in the lungs, intestines and blood. Silicon gives strength and support to all connective tissue, tendons and ligaments, skin, hair and nails. Body Essential Silica is a colloidal preparation of natural silica, a good source of elemental silicon, in which microscopic particles of silica are so finely dispersed in water that a gel is formed. This makes Body Essential silica uniquely easy to absorb. Body Essential Silica is prepared from quartz crystals and provides silica in one of its purest, most potent forms.