Perfume strength is determined by the concentration of perfume oil in the fragrance. The higher the concentration of oil, the stronger the fragrance and the longer it will last. The different fragrance strengths include Eau Fraiche (1-3% oil), Eau de Cologne (2-4% oil), Eau de Toilette (5-15% oil), and Eau de Parfum (10-20% oil). Perfume, or parfum, is the most concentrated with 20-30% pure perfume essence, and it can last up to 24 hours with a single application
. When it comes to perfume, the strength determines how far the scent travels and how long it lasts on the skin. In terms of ingredients, fragrances are a fusion of natural and synthetic ingredients. Natural ingredients are taken from or inspired by nature, while synthetic ingredients are used to make the fragrance last longer, carry further, or stay true when worn on the skin
