A fresh scent looks simple, but a perfumer works hard to build it. Light, bright smells such as lemon fade fast, so they need help to last. If you shop for perfumed candles online, it helps to know how that help works. Here is how a perfumer thinks about it, and what it means when you light a jar at home.

Perfumed Candles Online Start With Three Layers

Perfumers build a scent in layers, called notes. Top notes are the part you smell first. They are made of small, light molecules that evaporate quickly. Mint, lavender and citrus materials such as lemon sit here, says the entry on perfume.

Heart notes come next. They form the main body of the scent once the top fades. Seawater, sandalwood and jasmine are examples. Base notes arrive last. They are rich and deep. On skin, they are usually not noticed until about 30 minutes in. Amber and musk are base notes. A good fresh scent uses all three layers, not only the sparkle on top.

Candle Aroma Oil: Why Fresh Scents Are Hard To Hold

The brightest part of a scent is also the quickest to leave. That is the puzzle with fresh scents. A perfumer wants the crisp opening, but also a scent that stays pleasant after the first few minutes. Heat from the flame also speeds up how fast light molecules leave the wax.

Candle aroma oil is the scent oil blended into the wax. Many perfumers help a fresh blend last in a few ways:

• Pair a citrus opening with a green or herbal heart.
• Add a soft base such as musk or amber.
• Test the blend warm, the way it will burn.

Fragrance Wax Melts and Jars: What To Notice

Next time you light a fresh jar, pay attention. Notice the first ten minutes, then the next hour. The scent may shift a little as the wax warms. That shift is the layers at work.

You can run the same test with fragrance wax melts in a warmer. Fresh scents live in the Fresh range, and the wax melts page has the melts. Jot down what you notice. It is a nice way to learn which notes you love. You do not need a trained nose for this. A quiet minute is enough.

Quick answers

What are top, heart and base notes in a candle?

They are the three layers of a scent. Top notes are smelled first and fade fast. Heart notes form the main body. Base notes are the deep, lasting layer.

Why do citrus scents fade so fast?

Citrus materials are made of small, light molecules that evaporate quickly. That is why perfumers pair them with heart and base notes that last longer.

Fresh scents reward a little attention. Perfumers spend years learning this craft. You only need to know the three layers to choose with more confidence. If you like to know what suits you, the fragrance personality quiz is a fun place to start.

Related reading

• Fruity Candles: Where Perfumers Put Them On The Wheel: how scent families are mapped
• Candle Perfume: The Grasse Flowers Behind A Floral Scent: where a floral note begins
• Perfume Fragrance Oils For Candles: Why Blends Smell As One: how a blend becomes one smell