A good base recipe for homemade fragrance oil is as simple as choosing a base oil that does not become rancid very quickly, advises CommonSenseHome.com. Oils such as grape seed oil, sweet almond oil and fractionated coconut oil are all effective base oils for scented perfumes. For solid perfumes, equal amounts of carrier oil and beeswax can be melted together before adding the fragrance oil.
To create a homemade scented perfume, Pioneer Thinking advises readers to pour their chosen base oil into a bottle until the bottle is three-quarters of the way full while leaving room for the essential oils. At this point, it's time to add in drops of the essential oils to create the desired scent, making sure that the scent is not overpowering. If too much essential oil is used accidentally, more base oil is added to dilute the strength of the oil's fragrance. Scents typically smell more strongly when they are applied to skin, so it might take some trial and error to figure out how much of each scent must be used to create the ideal perfume.
A blending guideline posted on Jo's Health Corner describes three different types of oils that can be used to give perfume a fragrance. These are broken into three categories: top notes, middle notes and base notes. Top notes are described as the most fragrant and fastest to disappear of the three. Middle notes are more stable, and their scents last one to three hours from application. Base notes are the least volatile and can potentially preserve the scents of the other types of oils.