What is an eau fraiche anyway? Well, in case you didn't know, there is a strict hierarchy of fragrance families. Perfume (eau de parfum) is legally required to be a minimum of 8% fragrance; Eau de toilette is 4 to 8% and eau de cologne or eau fraiche are 2-4% fragrance. Lighter, fresher, not so overpowering and, consequently, very affordable! Acorelle eaux fraiche come in all the 6 most popular fragrances.