Weak or strong?
Ceramide is the main component of the human epidermal layer. The skin is healthy when the percentage of intercellular lipids made of ceramides is about 50.
A weak skin barrier tends to lose the moisture of the environment, causing dehydration and reactive and sensitive skin.
The line devised by Dr. Jart evokes healthy skin with a strong skin barrier protecting it from moisture loss, leaving the skin smooth and hydrated.