Bioderma hydrabio moisturising mask the first gentle mask generating hydration with aquagenium174 for sensitive and dehydrated skins 8226 a bioderma innovation the patented aquagenium174 biological complex re trains the skin to generate in depth the hydration essential to its natural balance and to lock it in on its surface 8226 hydrabio mask provides deep down long lasting moisture during periods of extreme dehydration the skin thus regains its comfort softness supple