Why do we get wrinkly when we get out of the shower?

[Atheist Sexbomb]

If our body absorbs things, such as cream, then shouldn't we be fuller when we come out of a shower instead of wrinkly?

[torranceswimmer]

Good question, you get wrinkly because of this waterproof oil called sebum in your skin. that's why we don't act like sponges and water washes right off us. But if you spend too long in the shower the sebum wears off and we start absorbing more water, making us look wrinkly. It only happens on fingers and toes though.

[Aga]

How can we absorb more water and become wrinkly?

I think it's just the opposite. We loose hydrophobic protective surface on our skin and the contact with water finally causes our skin to dry. It's my personal opinion, but I quess that this is caused by osmotic pressure - hard water (containing more minerals like calcium, manesium ions etc.) causes our cells to secrete water and so they contract.