Eli5: Why do you need to moisturise when you get out of water?

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If you’ve just been in water why are you rehydrating your skin?

In: Biology

2 Answers

Anonymous 0 Comments

Because water from pools and sea has lots of solutes there. You might actually think because you got wet you are hydrated but its not enough. Law of osmosis states that water moves from area of low concentration to high concentration so water actually moves from your skin to nearby water. Hence wee moisturize.

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