Fragrances are just as powerful as any accessory. Whether you’re wearing a signature scent, or opting for something bold for an event, the right fragrance can make a powerful statement. At the core of any good fragrance lies the structure of the notes, where just like in music, the individual components blend together to create an intricate, unified balance of art and emotion.
These fragrance notes consist of three main types, and in this guide we’ll walk you through each one so that you can understand what they mean and how they work together to create a pleasing perfume or cologne.
What are the three main fragrance note categories?
In the fragrance pyramid, there are three categories. These are ‘top notes’, ‘middle notes’ (also sometimes known as ‘heart notes’), and ‘base notes’. They are categorised according to their longevity, with top notes evaporating the quickest and base notes evaporating the slowest.

To summarise, each level of this pyramid serves a particular purpose:
- Top notes: the first impression
- Middle / heart notes: the core of the fragrance
- Base notes: the lasting scent
Now we can take a look in closer detail to understand how they work together.
What are top notes?
Top notes are the most volatile, evaporating the quickest of all in the fragrance pyramid. They typically last only for the first 5-15 minutes after being sprayed onto the skin. Their main purpose is to give an initial impression of the fragrance that will create a smooth transition into the next part of the fragrance journey. The top notes are also what you will first smell when testing a perfume.
Top notes are quite often crisp and invigorating. This is because they need to really pique your interest with that first impression, capturing your attention and setting the tone for the rest of the fragrance, and they have such a short time to do this before the middle notes take over.
As such, you’ll often see top notes with citrus oils, aromatic herbs, or fruity scents.
What are middle notes?
Next in the fragrance pyramid, we have the middle notes. These are sometimes written as heart notes, because they are the soul of the perfume. Depending on the fragrance, these usually last for 2-3 hours, but this can be more or less depending on the perfume. Middle notes need to blend with the top and base notes seamlessly, so they’re often more rounded and full bodied. They sometimes are used to help act as a buffer for the base notes too, which may not be as pleasing when they’re used on their own, but create a wonderful scent when paired with another ingredient.
Common examples of middle notes include floral accords (like ylang ylang, jasmine, or rose), or spicier notes like cinnamon, cardamom, or lemongrass.
What are base notes?
Base notes are the lasting scent, they’ll withstand wear long after the top and middle notes have evaporated. They are the foundation of the perfume, often bringing warmth and depth and last for several hours on the skin. The base notes work with the middle notes to create the perfume’s scent, drying down into a wonderful blend where the base fragrances really come through.
Common base notes include woody scents (sandalwood, cedarwood, oud), musk, amber, vanilla, or resins like myrrh. These notes are rich, leaving a lasting impression. The base notes directly affect the sillage (the trail left behind from a perfume).
We often recommend when choosing a perfume that you pick one that has base notes you like - as these are what you’ll smell for the longest time!
The fragrance pyramid is carefully thought out by perfumers to ensure the best olfactory experience. A good pyramid provides a seamless blend where the fragrance notes never overwhelm each other.
Do fragrances always use the fragrance pyramid?
No, fragrances do not always use the pyramid. However, the vast majority of them do. Designer perfumes, for example, will nearly always use the fragrance pyramid, because this has a broader appeal and is more accessible to those who aren’t as experienced in identifying individual notes and compositions.
Niche fragrances may not follow this format, instead following more linear or abstract compositions. This is also true for many single scent or minimalist fragrances that tend to smell the same from the first spray through the lifespan of the fragrance.
For example, the Jo Malone Tonka & Myrrh Cologne has no top notes, as it contains only the base notes. This means that this fragrance is very rich, with the fundamental scents forming a warm and resinous accord from start to finish.
Need help finding the right fragrance based on notes?
Here at Hogies, we’ve created plenty of helpful guides to help you find your perfect fragrance. Use the directory below to be taken to even more helpful fragrance guides, so you can become an expert in no time!
- If you want to learn more about fragrance languages, refer to our fragrance glossary.
- If you want to learn more about the different types of fragrance families, check out our ‘what are the different types of perfume scents?’ blog.
- If you need extra help buying perfume based on note descriptions alone, read our ‘how to pick a perfume online’ blog.
Find your perfect scent at Hogies Online
Feeling confident enough to put your knowledge to the test? Browse our full range of fragrances to find a note composition that speaks to your intuition and personality, and try to find one with base notes that match scents you typically like. Alternatively, if you want to try something totally different to your normal scents, shop our clearance fragrances to test out new compositions for a fraction of the price.