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.
How to Get Rid of Foot Fungus. Fungus can infect the skin and nails of your feet. A fungal infection of the skin is also known as Athleteâs Foot, which causes itching, burning, and flaking. This infection can spread to the toenails if itâs not treated. Both types of foot fungus are extremely contagious, both in your own body as well as to other people through contact.