Eau de parfum-type fragrances are made to last well throughout the day. 50 ml is a small packaging, but that also means you can take it in your carry-on when traveling.
From Debenhams
Elie Saab Girl Of Now Shine Eau De Parfum - Misc - 50ml
The Beauty Store
Elie Saab Girl of Now Shine Eau de Parfum Spray 50ml for Her