Top, heart, and base notes: understanding the olfactive pyramid
When you wear a fragrance, it's not a static experience. You go through a true olfactory story, with chapters unfolding from morning until evening. This is what perfumers call the olfactory pyramid: a three-tiered architecture that defines the evolution of a fragrance over time.
The experts at ORIZON7 decipher this fundamental structure for you, to help you better read perfume descriptions and, most importantly, to choose the fragrance that truly suits you.
1. Top Notes: The First Impression
These are the first molecules you smell immediately after spraying, creating that "love at first sight" effect in the store. Light and volatile, they evaporate quickly, typically within 15 to 30 minutes.
They often include citrus (bergamot, lemon, grapefruit), green notes, or light spices like pink pepper. Be aware: an enticing top note does not guarantee the rest of the olfactory journey. It's just the first chapter, not the whole story.
2. Heart Notes: The Soul of the Perfume
These appear after the top notes have evaporated and form the identifying core of the fragrance, lasting from 2 to 4 hours. This is where the true character of a perfume is revealed.
Floral, spicy, fruity, aromatic… heart notes often make up 50 to 60% of the composition. A rose-oud accord, a creamy tuberose, or a smoky leather accord: this is where the personality of a great niche creation truly shines.
3. Base Notes: The Lingering Signature
Rich and deep, base notes are the last to reveal themselves and the most long-lasting: they can persist for 6 to 24 hours on the skin, or even longer for an Extrait. These are what create the memorable sillage that stays in our minds.
Sandalwood, cedar, oud, musk, amber, vanilla, resins… Base notes anchor the perfume, giving it depth and its sensual character. They are what make a perfume truly "yours."
4. Why Test the Full Pyramid Before Buying?
Here's the classic trap: you love a perfume in the store, you buy it, and two hours later it no longer feels like you. The reason? You only smelled the top notes. The full pyramid only reveals itself on your skin, over time.
ORIZON7 Tip: To experience the entirety of an olfactory pyramid, you need to wear the fragrance daily, over several days. This is exactly why we offer the greatest niche perfumery creations in authentic travel sizes of 5ml or 10ml, decanted from the original bottles.
Wear it in the morning, observe its evolution over the hours, let the base notes settle on your skin. This is the only way to know if a fragrance is truly for you, before investing in a full bottle.
Ready to explore an olfactory pyramid from beginning to end? Discover our selection of travel sizes and let each note tell you its story.











































