If you don’t like any commercial perfumes, and want to have your own unique scent, then the only way out is just to make your own! That is possibly the best thing to do rather than get frustrated from spending hours and hours smelling perfumes in department stores and specialty shops. Besides you might end up creating a scent that is cheaper yet richer and more perfect for your body.
Once you decide to make your own scents, you should always remember that perfumes have three basic structures or layers, namely: the base notes, heart or middle notes and top notes. The first smell that you'll notice will be the top notes and it is also the first one to evaporate. 
Top notes express the first impressions. They create the mood and are immediately captivates. For now, the heart notes or otherwise known as the middle or coeur notes. These ones appear later and last longer. They also give character to the perfume. And the last layer is the base notes which lasts the longest. They gradually come out blending with both the heart note and the top note.
Make sure that you don’t put natural essential oils and absolutes as top notes. They are essentially complex compounds that sometimes already contain middle notes and even top notes characteristics. Therefore concern should be taken when you start mixing or blending different kinds of essential oils.
Perfectly, the top notes are made from citrus oils like bergamot, lemon, mandarin, orange, etc. Conifer oils: cypress, fir, pine, spruce, etc. can also be used. The popular top notes oils also include mint oils, cardamom, basil, chamomile, juniperberry, ginger, petitgrain and rosemary. When it concerns to middle notes, then probably the best oils to use are floral oils and absolutes such as caraway, black pepper, cinnamon, clary sage and clove bud.
Oils from coriander, elemi, galbanum, sweet marjoram, geranium, lavender and nutmeg are also great middle note materials. Palma Rosa, violet leaf and thyme have also been used before and their blending capabilities have proved to be quite effective. Wood oils such as cedarwood, gaiac, linaloe wood and sandalwood are great as base notes. Resin oils: frankincense and myrrh.
Also perfumers use patchouli, labdanum, oakmoss absolute, vetiver and even vanilla as base notes for their perfumes.
Once you decide to make your own perfumes, it is always, always important to know your materials. For example, essential oils have different characters, behavior, strength and weaknesses. All characteristics should be considered and their effects studied closely. You should know the effects of the essential oils and perfume blends on your skin.
You have to understand how the mixture will react when diluted or when it is set over time. You also should be prepared and know or at least have an idea on how the mixtures will react. Therefore, the perfect advice that you write down is all the processes that you undertook, from measurements to blending procedures.
Consider taking regular breaks; it is as important as the actual steps are. This not only will help in raising creativity but it will help make you safe from some harmful effects of prolong exposure from oils. Keep in mind that you are working with essential oils.
The oils are highly concentrated and give off very strong smell. As a result it is possible to become sick if you spent too much time working on them especially in unventilated areas. And lastly, there's also a limit to how much scent or perfume your nose can take.
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