Discontinued and reformulated fragrances
Writing about reformulated or changed fragrances can be tricky as you never know for sure which version you bought or have. Some perfume houses claim their fragrances were not changed and have stayed the same since they were released and others are more open and honest about it. Due to changing laws or self regulation which do not permit certain ingredients, essences which have become more scarce (even extinct) or due to financial reasons (to cut costs) fragrances do change.
Personally I own older versions of Dior Dioressence, Dior Diorissimo, Dior Addict eau de parfum and Dior Diorella. Examples of scents which have been altered in the course of time beyond recognition. It is my opinion perfume bottles should have a date on them in order for a consumer to know which perfume version they are buying and if the formula has been changed. If you go to the perfume counter and buy a completely different version of Dior Addict eau de parfum than the one you bought some years ago, are you being fooled ? Don´t you, as a consumer, have the right to know a formula or perfume has been changed ?