Top, heart and base notes: how to read a scent (and why it changes as it burns)
8 April 2025 · Mark, Muir & Me

A fragrance is not a single thing. It shifts. The scent that greets you when you first light a candle is not the scent you will smell an hour in, and that is not an accident. Every fragrance is built in layers, called notes, and understanding how those layers work is the difference between buying something that sounds good and buying something you will actually love living with.
What are top, heart and base notes?
Every perfumer, and every candle maker worth their salt, thinks in three stages: top, heart, and base. They are not distinct ingredients so much as a timeline.
Top notes are first impressions. Citrus, light herbs, a hit of green. They are the most volatile molecules in a fragrance blend, which means they evaporate fastest. In a candle or Aroma Melt, you might catch them in the first ten or twenty minutes of burn. They are vibrant, often sharp, and they do an important job: drawing you in. But they do not stay.
Heart notes are the character of the fragrance. Florals tend to live here. Lavender, jasmine, rose, geranium. So does a lot of the aromatic work: spices, soft herbs, some light woods. As the top notes fade, the heart opens up and tells you who this fragrance really is. This is what you are smelling for the majority of a burn.
Base notes are the dry-down. Sandalwood, cedarwood, oud, amber, musk, vanilla. They are the heaviest molecules, the slowest to release, and the ones that linger longest on textiles and in a room after the candle is out. A good base turns a fine fragrance into an experience that has weight and warmth.
When you are reading a fragrance description, the notes are usually listed top to bottom in that order. It is worth paying attention to all three, not just the top line.
Why a candle smells different lit versus unlit
This catches people out. You smell the candle in the shop, love it, bring it home, light it, and think: hang on, that is different. It is.
The cold throw, what you smell when the candle is unlit, comes from fragrance molecules that have simply evaporated off the wax surface at room temperature. Those tend to be the lighter, more volatile top notes. The hot throw, what you smell during a burn, is the full fragrance picture: the heat of the melt pool releases everything, including the deeper heart and base notes that are harder to pick up when the candle is sitting cold on a shelf.
This is also why Aroma Melts tend to fill a room faster and more fully than a candle. The electric or tealight burner pushes more heat into the wax, releasing the fragrance more aggressively from the start. It is not a better or worse experience, just a different one: immediate and immersive rather than the slower unfurl of a candle.
The main scent families, explained plainly
Perfumers use a set of broad categories, called families, to group fragrances by character. Knowing where a scent sits helps you predict whether you will get on with it.
Fresh and citrus. Bergamot, lemon, grapefruit, green tea. Clean, sharp, uplifting. These tend to be lighter fragrances with prominent top notes. They are typically the easiest to wear in any room because they do not dominate.
Floral. Jasmine, rose, peony, lily. The broadest family by far. At their best they are rounded and soft rather than soapy. A good floral candle sits somewhere between a garden and a room, present without being perfumed.
Aromatic. Lavender, sage, rosemary, thyme. Herbal and sometimes slightly medicinal in the best way. Lavender is the obvious example, but this family runs right through to more complex blends that feel like countryside air or a warm kitchen.
Woody. Cedarwood, sandalwood, vetiver, patchouli. Grounding, often earthy, sometimes slightly smoky. They tend to carry strong base notes and work particularly well in the evenings. A woody candle changes a room: it makes it feel quieter.
Oriental and amber. Oud, amber, musk, vanilla, resin. Warm, deep, occasionally sweet. This family polarises people more than any other: some find it comforting and enveloping, others find it too rich. If you burn a lot of candles in winter, there is probably an oriental in your collection already.
Most real fragrances do not sit neatly in one box. A blend might open with bergamot (fresh/citrus), move through a lavender heart (aromatic), and settle into a sandalwood base (woody). Reading the notes tells you the journey.
How to choose a scent you will actually like
Start with what you already know you like. Think about the spaces you find calming or invigorating. A bathroom where you want to feel sharp and awake calls for something citrus-forward. A bedroom needs a slower burn: something with a warm base that does not demand attention.
Think about the season, too. Light floral and citrus fragrances feel strange in January. Deep amber and oud can feel oppressive in July. There is nothing wrong with rotating your collection through the year.
If you are drawn to warmth and richness, Cashmere & Oud is built for that: a true oriental, heavy with base-note presence, the kind of fragrance that stays in a room long after the flame is out. If you want something more complex and less immediately obvious, Saffron & Oak moves through a spiced aromatic opening and settles into a woody, resinous dry-down that rewards attention.
Pairing by mood rather than just family is another useful approach. Not every fragrance fits every moment. We think about this directly in how we group our range: Indulge gathers the richer, more enveloping scents for evenings and deep rest, while Unwind leans into the quieter, softer end of the spectrum for switching down after a long day. Browsing by mood often gets you to the right answer faster than reading ingredient lists.
Common questions
Do fragrance notes work the same way in all home fragrance formats?
Broadly yes, though the experience differs. A candle releases its notes gradually over a long, slow burn. Aroma Melts give a faster, fuller release from the start. A reed diffuser releases continuously but subtly, so the top notes are less pronounced and you mostly live with the heart and base. Room sprays are all top notes, by design: instant lift, then mostly gone.
Why do some candles smell stronger on cold throw than others?
It depends on the fragrance load (how much oil is in the wax) and which notes dominate the blend. High-citrus, high-musk blends tend to cold throw well because those molecules escape easily at room temperature. Deeper woods and resins are harder to detect unlit, even in a heavily fragranced candle. This is why cold throw alone is a poor guide to how good a candle will be when burning.
What does "dry-down" mean?
Dry-down is the later stage of a fragrance's life: the phase after the top notes have faded and the heart has settled. In a candle this is the character you are smelling after the first thirty minutes or so of burn. In perfumery it is what a scent smells like on skin after a few hours. Base notes define the dry-down, and they are often the most revealing part of any fragrance.
Can I blend different candles or Aroma Melts together?
You can, though it pays to be thoughtful. Two fragrances from the same family tend to layer without clashing. Mixing a fresh citrus with a deep oriental, for instance, can feel discordant because the note structures pull in opposite directions. The safest blends sit in adjacent families: woody and aromatic, or floral and amber.
If you are curious about the range and want to explore by family or mood, the full collection is a good place to start. Everything is described with its key notes, so you can read the journey before you commit.
