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.
first soak your feet in water use an exfoliant on the area once a week natural yoghurt and ground almonds is a good natural one or buy one. scrub that vigourisly over the foot for 3 minutes soak feet again and then use a pumice stone to get rid of the skin dry feet and rub in a moistuirising lotion.assage your feet with a moisturizing lotion. Use an exfoliating lotion if the skin is dry and/or roughened. Use a loofah or pumice stone on roughened areas. 7. Separate your toes. Put cotton between your toes, or use a ready-made device for pedicures.