Eau de Portugal is similar to the Lerinia, but with a more distinctive citrus blend of oils to give the unique fragrance of Eau de Portugal. This version with oil is heavier and the oil serves to hold finer hair or to give a straighter appearance to curly hair. The oil used is castor oil and this is soluble in the spirit solution. This is lighter than the first 2 oil versions, but serves the same purpose. The oil holds the hair in place better and adds oil to the hair.