Perfumery school
Eau de parfum and eau de toilette
Concentration is only part of the story

The olfactory idea
Terms such as eau de toilette, eau de parfum and extrait describe product styles and concentration conventions. They do not provide a universal guarantee of projection, quality or wear time.
Understanding the craft
Different versions carrying the same fragrance name may use different formulas as well as different concentrations. The materials and balance can matter more than the label when you compare performance.
Explore it for yourself
Test the actual version you intend to buy. Compare it over several hours and at a similar application level rather than judging the first spray alone.
Further reading: IFF Ingredients Compendium · Givaudan natural ingredient expertise. These resources offer broader technical context; they are not endorsements of CYDIVA.