There are just some products in the beauty industry that sell out faster than you can say "sheet mask!" Whether it's cult classics from The Ordinary or NIOD or makeup must-haves from Jeffree Star Cosmetics, it can be tricky to get your hands on some of the world's most in-demand products, so we've rounded up eight must-have finds that are in stock right now. They won't be for long though, so get going!

beauty feature back in stock