More of a biology question: skin and how it absorbs nutrients?

Vena Cava

New member
I remember a long time ago in bio we talked about cells- how they're made of phospholipid membrane and inside they have mitochondria, ribosomes..ect...
So now Im thinking how do face masks and creams work?
If you put cucumber slices on your tired eyes, how does the juice get absorbed by the skin if its made of phospholipid layer that won't allow the water soluble cucumber juice to enter?
 
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