Men 1) Concentration differences: Extrait de Parfum typically contains 20%–40% aromatic compounds and is the most intense form; Eau de Parfum (EDP) usually contains 15%–30%; Eau de Toilette (EDT) contains 5%–20%. 2) Olfactory pyramid: fragrances have top, middle and base notes. Top notes are perceived immediately after spraying; middle notes emerge after the top notes evaporate; base notes persist on the skin for a longer time. 3) Testing fragrances: spray on the skin to allow the notes to develop; wait a few minutes for top notes to evaporate and for the fragrance to evolve into its heart and base. 4) Longevity: fragrance interaction with individual skin pH affects longevity and scent. For longer lasting effect, apply to pulse points such as wrists, neck, behind the ears and the inside of the knees. 5) Storage: avoid storing perfumes in warm places; keep in a cool, dark place to preserve freshness and quality. Fragrances and Deodorants