What’s the Difference Between Cologne/Perfume, Eau de Toilette, and Eau de Parfum?
Here’s a top-level breakdown so you know the real difference and can now choose the right fragrance option for you.

What are Top Notes, Base Notes, and Medium Notes?

Top Notes: Typically lighter scents and what you’ll smell first.
Base Notes: Typically bolder and stronger scents that you’re left with after applying the cologne.
Medium Notes: Typically your more fruity notes that combine with your top and bottom notes. It pretty much ties everything together.
Overall, the smell is going to differ from a person to a person and how they truly interact with their own body’s chemistry. The notes are a good overall guide so you know what you’re getting out of the cologne, but don’t be afraid if you see a note that you may not love, it doesn’t mean the entire cologne will smell like that. It’s just how they all work together.
Source: sabishops.com