Why are your hands slippery when dry, get “grippy” when they get a little bit wet, then slippery again if very wet?

Question

Why are your hands slippery when dry, get “grippy” when they get a little bit wet, then slippery again if very wet?

In: Physics

Answer 1

Old ELI5…

Actually, when the ridge on your fingertips and hand get hydrated with water, combined with the crease, will act as a ventouse. Kinda like if you had a thousand of little ventouse on the inside of your palm hand so it stick to slipery surface.