Comparing two versions with a shared name
The difference between an eau de parfum and an eau de toilette may concern the balance of notes as well as concentration. Dior’s Sauvage pages let you compare two exact references. Avoid applying a rule drawn from one example to every fragrance: each house defines its creations and variations through its own approach.
Preference emerges as the fragrance develops
Diptyque’s Do Son collection also shows the value of examining several presentations of one signature. During trials, identify where the versions differ for you: opening, floral texture or base. You may prefer an eau de toilette for its movement or an eau de parfum for its balance without establishing a hierarchy that applies to everyone.