The difference lies in the proportion of fragrance oil. The higher the proportion of fragrance oil, the more concentrated the fragrance. A distinction is made between:
Extrait de Parfum (EdP) 20-25% fragrance oil
Eau de Parfum (EdP): 10-14% fragrance oil
Eau de Toilette (EdT): 6-9% fragrance oil
Eau de Colonge (EdC): 3-5% fragrance oil