A translucent protein found in the outer layer of skin that helps make your skin appear smooth and glassy.
From Greek 'eleios' meaning 'of oil' or 'oily' + the chemical suffix '-in'. Named in the late 1800s by skin scientists who noticed it had a shiny, oily appearance under microscopes.
Eleidin is why your fingertips look slightly translucent and smooth—it's literally the 'gloss' of healthy skin. Without this protein layer, your skin would look dull and rough, which is why dermatologists study it to understand aging and skin damage.
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