The cell membrane's main trait is its selective permeability, which means that it allows some substances to cross it easily, but not others. Small molecules that are nonpolar (have no charge) can cross the membrane easily through diffusion, but ions (charged molecules) and larger molecules typically cannot.
Remove dead skin from hands and feet. The basic way to exfoliate hands and feet begins with keeping them in warm soapy water for at least 15 minutes. You will notice that your skin has become ultra soft. Now the time begins to exfoliate your hands and feet. Apply the scrub to skin and rub it for 15 minutes.
Add around Â½ cup of Epsom salt to the water. Soak your feet for 10 â 15 minutes until they are softened. Mix some Epsom salt with just enough water to form a paste and exfoliate each foot with the mixture to remove any dead skin cells and flaky skin. Put your feet back into the basin to remove off excess Epsom salt.