These terms reference the concentration of essential oils in a scent. Parfums or perfumes are the strongest strength with approximately 20-30% of essential oils. Eau de Parfum (EDP) represents midrange strength consisting of 10-15%, and Eau de Toilette (EDT) is the lightest strength containing the least amount of essential oils with a range of 3-8%. Bellekin’s EDP compound is 18-25%, and our EDT compound is 7-9%.