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.
5. Use products with benzoyl peroxide. You can use benzoyl peroxide in the form of either a soap or lotion over your acne-prone areas. This product works to clean off dead skin and help your skin to regenerate new, clean cells faster.xfoliates are mild scrubbing products that work to slough (to get rid of) off dead skin cells that build up and cause acne. Exfoliation can be chemical or physical. 1  For a gentler approach, use a chemical exfoliator, an AHA or BHA at a pH between 3 and 4 to slough off skin. 2  A chemical exfoliation un-glues dead skin.