This intensive treatment is specifically designed to penetrate, moisturize and repair even the toughest cracked and calloused feet. Contains the finest ingredients available: CoQ10 (Coenzyme Q10) - a powerful coenzyme that boosts the skins natural ability to renew itself and Imidazolidinyl Urea - a powerful softening agent used in most high-end exfoliating formulas. 16 oz. salon size.