Opexa Gel contains Dimethicone and AscorbylTetraisopalmitate, Silicone elastomer dispersion of decamethyl cyclopentasiloxane, Polydimethyl Siloxane, Dimethicone/Vinyl Dimethicone crosspolymer, Silica. – Opexa is a topical silicone gel – Opexa Gel works by reducing the free radical formation