Eau de Cologne
Eau de Cologne carries 4-6% concentration fragrance oil. This is one of the lightest scents. It could be compared to an aftershave but that does not make it a mens’-only scent.
Eau de Cologne is suited for days you want a light mist of fragrance. The staying power would not be as long as other scents.
Eau de Toilette
7-10% of Eau de Toilette comprises of fragrance oil. These are great if you’re going to be in close proximity to other people and don’t want to overpower the small area with your scent.
Eau de Toilette’s staying power would outlast that of Eau de Cologne but not Eau de Parfum.
Eau de Parfum
Eau de Parfum carries 10-20% concentration fragrance oil. This is the second strongest of all scents.
If you know you’re going to be out and about, not being able to refresh, Eau de Parfum has good staying power.
Parfum carries the highest concentration of 10-20% concentration fragrance oil.
The price of Parfum is higher than that of Eau de Parfum, hence the higher price. But you can rest assured, you can not do better than Parfum.
Though you grow accustom to it throughout the day; others will still enjoy your pleasant scent.