Superdrug Me+ Hyaluronic Acid Booster Serum will give skin a boost of moisture and help with the appearance of dehydrated skin after 4 weeks of use. Infused with 2% Hyaluronic Acid, the solution is a highly effective blend of hydrating ingredients which have a unique capacity to bind and retain water molecules leaving skin feeling plumper and firmer. After four weeks of use fine lines appear reduced and skin looked more youthful.