香精，也称为香水，通常是香精油和无味溶剂的混合物。芳香油，芳香族化合物（通常为天然香精油）和/或香料油使香气具有香味。香精油可以来自植物或动物（通常称为"essential oils"或EO）或人工合成油（"fragrance oils"或FO）。无味溶剂，通常为乙醇或以下物质的混合物 水 and ethanol, carries the 香精油. The ratio of fragrance oil to solvent determines what the fragrance compound is called.
These names are not regulated, and are not always indicative of stronger or weaker scents. For example, an Eau de Toilette may not always be stronger in scent than an Eau de Cologne. The exact quantity and blend 香精油 will determine how long the fragrance lasts (longevity), and how far it projects away from you for others to smell it (sillage).
有多种版本（例如EdP和EdP）或常规版本和"intense" version, may be just a difference in the strength, or it may be a completely different fragrance with different 香精油. While the stronger fragrances are typically made to market to ladies, there are some that a made to market to men or to both (unisex). There is 没有 除文化和个人联系外，还固有地是男性或女性香水。
- Perfume or Perfume Extrait: 15% to 40% 香精油, typically 20%
- 香水（EdP）：15％至30％，通常为15％
- 淡香水（EdT）：5％至15％，通常为10％
- 淡香水或科隆香水：3％至5％
- 淡香水：约1％
These names are not regulated, and are not always indicative of stronger or weaker scents. For example, an Eau de Toilette may not always be stronger in scent than an Eau de Cologne. The exact quantity and blend 香精油 will determine how long the fragrance lasts (longevity), and how far it projects away from you for others to smell it (sillage).
有多种版本（例如EdP和EdP）或常规版本和"intense" version, may be just a difference in the strength, or it may be a completely different fragrance with different 香精油. While the stronger fragrances are typically made to market to ladies, there are some that a made to market to men or to both (unisex). There is 没有 除文化和个人联系外，还固有地是男性或女性香水。