Top, heart and base notes explained
SESH Academy / Fragrance Academy · Beginner
Explain the three note phases as overlapping perceptions, not separate liquid layers.
Particles spread from higher to lower concentration. This is a qualitative model, not a perfume longevity timeline or a measured skin absorption rate.
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They aren't three liquids stacked in a bottle
A fragrance pyramid does not mean the perfumer pours three separate layers into a bottle. Materials are blended into one formula. Different effects become prominent at different moments because materials have different volatility and our noses perceive mixtures differently. A note pyramid is a useful description of the scent journey, not a drawing of liquid layers.
Top: your first impression
Top notes are the effects you notice most clearly near the opening. Citrus, green and sparkling fruit facets often play this role, partly because many contributing materials are more volatile. But there is no rule that every top note vanishes exactly five minutes later, or that every perfume must open with lemon.
Heart: the central character
The heart, or middle, is the character that grows easier to notice as some opening effects settle. Florals like jasmine often illustrate it, but a heart can also be fruity, aromatic or spicy. It isn't always rose, and some heart facets may be detectable from the very first spray.
Linalool contains an OH alcohol group. One functional group is insufficient to predict every molecule’s odour or the performance of a mixture.
Open full-size image ↗Base: the later dry-down
Base notes are the effects that often remain noticeable later, including woody, musky or vanilla-like facets. A dry-down may linger close to skin even when projection has faded. Listing woods or musk doesn't guarantee a specific wear duration. Next we'll look at how a perfumer balances the overall construction.
Try it yourself
Choose one fragrance. Note impressions immediately, after around fifteen minutes and later. Which impressions rose or faded?
• Do not layer another perfume on the same spot.
• Write two adjectives at each check.
• Compare character, not just spray strength.
Check your reasoning: If citrus fades and floral character grows, that may be normal evolution. It doesn't mean all citrus molecules vanished or that notes follow a fixed timetable.
