The differences are the amount or the concentration of oils that are in the scents. The higher the concentration of oils, the longer your scent will last, and the less you should need to apply. Are all of your products genuine?.
Burberry Weekend Eau de Parfum Spray 30ml Womens Perfume Floral Scent
Burberry Weekend Eau de Parfum Spray for Women 100 ml BUR72 Multicoloured
Burberry Burberry Classic Eau de Parfum
Burberry Mr Burberry Indigo Eau De Toilette 100ml
Burberry My Burberry Black Eau de Parfum Spray (90ml)
Burberry My Burberry Blush Eau de Parfum 90ml Spray For Her New & Sealed