Silicone Gel is not edible. Silicone is the old name of silicone. Later, because silicone is homonymous with tin or selenium, it was changed to silicone to distinguish it. In Taiwan and other Asian countries, silica gel is still called silica gel. Silica gel, also known as siloxanes or polysiloxanes, is an organic-inorganic polymer. Silica gel is mainly composed of silica, which is stable in chemical properties and non-combustible. Silica gel is a kind of amorphous silica.