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.
Using moisturising oils like olive oil, grape seed oil, and jojoba oil can help exfoliate the dead skin and to soften dry feet during pregnancy. Petroleum Jelly. After washing your feet, use pumice stone to exfoliate your skin. Apply petroleum jelly to each foot and make sure to massage well to heal the dry skin.