- Top Note: which is the first smell you get when you smell the fragrance. They are the lightest group of essential oils which evaporate very quickly because of their small molecular size. Generally, all the citrus and fresh EO’s come under this category. For example, lemon, orange (sweet and bitter), mandarin and many more!!!
- Middle Note: which is the heart fragrance of your perfume and it starts developing just immediately before the top note is going to die away. It has lesser evaporation rate than the top note and thus, last longer than them. It also helps to blend away the base note more pleasantly into the perfume. This category includes a lot of EO’s like the floral genre or the oriental EO’s. For example, neroli, vanilla, rose, lavender and many more.
- Base Note: which is the base of the perfume and lasts the longest as it has least evaporation rate and largest molecule sizes. Some of the base notes can last for days on the body. It starts developing almost after the heart of your perfume goes away. The base notes combined with the heart notes give a certain depth and character to your perfume. So, if you are going to use only single essential oil for your perfume, always use the base note. These scents are mainly woody or spicy. For example, cinnamon, frankincense, patchouli and many more.
- Bridge Notes: which help bridge the scents of the middle and the base notes with the top notes. The middle and the base notes contribute a lot to the top note so you can say all the three notes blend in harmony. So, there is nothing as such separate called the bridge notes but this is just for reference. I don’t even know if perfumers really consider these notes either. As far as I have read, there are only three bridge notes – vanilla, lavender, neroli and Ylang Ylang. Yes, these notes are not categorized separately but are from the middle and base note family. Thus, if you are going to use Ylang Ylang, you can as well use it as a middle note and combine it with a spicy base note. Ylang Ylang is both a middle and a base note.
These are the notes which make a perfume. So, when we make Perfume at home, the various essential oils from all notes are taken and blended together.
What I did?
So, before you start making perfume, you want to buy Essential Oils from various notes which can be blended together. So, I bought five EO’s – Bergamot (it is a top note), Neroli and Rosemary (which are middle notes), Frankincense (which is a base note) and Ylang Ylang (which is both a base and a middle note and can also be categorized as a bridge note).