elf skin Holy Hydration! Triple Bounce SerumWhat is it: A face serum that delivers 1. 7% hyaluronic acid in three molecular weights to help hold moisture. (Translation? A plump, bouncy complexion). How it works: 3 molecular weights of hyaluronic acidultra low, low, and highwork together to provide 3 different intensities of hydration. Why you'll love it: Gives you a hydrated, plump, smooth, and bouncy complexion Supercharged with 1. 7% hyaluronic acid in three different molecular weights to