The difference between parfum and eau de parfum is a slightly lower perfume concentration. Maybe this could be an nice gift for your sister?
AllBeauty
ZARKOPERFUME - PURPLE MOLéCULE 070.07 100ml Eau de Parfum Spray for Men and Women
Notino
Zarkoperfume PURPLE MOLéCULE 070.07 eau de parfum for women 100 ml
Luxplus
Zarkoperfume Purple Molecule 070-07 EDP 100 ml