Get transformative antiageing care every day with the vichy liftactiv derm source serum 10 a luxurious formulation made up of a 10 ultimate concentration of rhamnose a naturally derived antiageing ingredientthis innovative youth enhancing serum targets the derm source a layer of the skin that directs cell and collagen fibre regeneration rhamnose has been identified as the most powerful active ingredient to target the derm source and restore lost radiance smoothness and vitalityafter just