The limited-edition GlamGlow GravityMud Firming Treatment Sonic the Hedgehog Blue Mask is available now for $22. You can get it at GlamGlow right now, and on Sephora’s website tomorrow.

Few beauty products have inspired quite as many selfies as the highly-coveted GlamGlow Sonic the Hedgehog GravityMud masks, the shiny blue masks that have been taking over Instagram for weeks. Makeup ...