Fragrances are produced in different concentrations, determined
by the ratio of aromatic oils to ethanol and water. Because there
there is no set standard in the industry, strength can vary between
Brands. One brand's eau de parfum can be just as strong as another's eau de toilette. So it's important not to attach too much importance to it.
Perfume (also called Extrait de Parfum, Perfume or Perfume Extract)
typically contains between 15% and 40% aromatic compounds. The
The International Fragrance Association (IFRA) estimates that it is usually around
20%. While it's difficult to make general statements, the concentration in perfumes is generally the longest-lasting and strongest.
This is partly due to the structure and formula, which focus more on the base notes (about 50%). Because these base notes linger the longest, perfumes often outperform other fragrances in longevity.
Eau de parfum has a concentration of approximately 10% to 20%, with the IFRA estimating that most are around 15%. Unlike extras, eau de parfum places more emphasis on the more refreshing heart and top notes: only about 30% consists of base notes, about 40% of the top notes, and 30% of the heart notes.
Eau de toilette has a concentration of about 5% to 15%, with most fragrances again falling in the middle, averaging around 10%. Since the dawn of modern perfumery, eau de toilettes have been offered as affordable alternatives to more expensive perfume concentrations. Their lower price and focus on fresh, sparkling top and heart notes have made them popular for everyday use. An average eau de toilette consists of 50% top notes, 30% heart notes, and only 20% base notes.