A good glitter primer is necessary to keep glitter makeup on your eyes all day long. We tried out four glitter makeup adhesives to see which helps best keep glitter on the eyes and prevents glitter fallout. We tested the e.l.f. Glitter Primer ($3), NYX Professional Makeup Glitter Primer ($6.50), Anastasia Beverly Hills Glitter Adhesive ($18), and Lit Cosmetics Daily Wear Glitter Base ($23) — and ranked them based on how well glitter adheres to them and how well the primers prevent glitter fallout. In the end, the NYX glitter primer came out on top with little to no fallout.