Parfum
Oil concentration between 20-30%. They have the highest fragrance concentration.
Eau de Parfum
Oil Concentration between 15-20%. It is considered by some as nightwear.
Eau de Toilette
Oil concentration between 5-15%. It is considered by some as daywear.
Eau de Cologne
Oil concentration between 2-4%. It is much lower in concentration than Eau de Toilette.
Eau Fraîche
Oil concentration between 1-3%. They have the lowest fragrance concentration.