Perfume Terminology Glossary

Key Takeaways:

  • Understanding fragrance vocabulary can make perfume shopping easier and more enjoyable.

  • Perfumes develop in layers over time and are built with top, middle, and base notes.

  • Fragrance performance and concentration affect how a scent wears. Terms like sillage, projection, longevity, and drydown are used to describe how a perfume behaves.

Do you ever go perfume shopping and wonder what the words on the bottles actually mean? Fragrance can sometimes feel like it has a language of its own. Terms like “drydown,” “sillage,” “projection,” and “accord” get thrown around often, but they’re not necessarily the most intuitive terms if you don’t already know what they mean.

From clean, fresh-smelling fragrances to smoky woods and sugary gourmands, understanding perfume vocabulary makes shopping less overwhelming and a lot more fun. This glossary breaks down common terminology in plain language. Whether you’re new to fragrance or just filling in the gaps, it’s all here.

Fragrance Basics

Scent Profile: A scent profile is the full picture of a fragrance, including its ingredients, fragrance family, mood, and how it wears on skin. Think of it as the personality summary of a perfume or cologne.

Fragrance Families: Fragrance families are the broad scent categories used to organize perfumes. Knowing which category you naturally gravitate toward makes shopping easier. The four main groups are gourmand, floral, woody, and fresh.

  • Gourmand: sweet, edible-inspired scents like vanilla, caramel, coffee, or chocolate

  • Floral: rose, jasmine, orange blossom, and other flower-forward scents

  • Woody: sandalwood, cedarwood, vetiver, patchouli, and smoky notes

  • Fresh: citrus, aquatic, green, airy, or laundry-inspired scents

Accord: An accord is when multiple ingredients combine to create a completely new smell. For example, a clean laundry accord combines several notes to replicate the smell of clothes fresh out of the dryer, as seen in Rose Era and Clean Getaway .

Notes: Notes are the individual scent ingredients that make up a fragrance. Perfumes are organized into three layers: top, middle (or heart), and base.

The Three Layers: Top, Middle, and Base

Top Notes: Top notes are the first thing you smell when you spray a fragrance. Light and airy, they often include citrus, apple, or mint. They evaporate quickly and typically last about 10–15 minutes before fading.

Middle Notes (Heart Notes): Middle notes, also called heart notes, are the core of the fragrance. They emerge once the top notes begin to fade and usually last for several hours. Florals, spices, and herbs often live in the heart of a fragrance.

Base Notes: Base notes appear slowly and are the longest-lasting layer of a fragrance. Woody, musky, and resinous ingredients are commonly used as base notes because they provide lasting depth and staying power. Base notes are what most people smell hours into wearing a fragrance and are usually responsible for making it memorable.

How the Layers Work Together

The three layers aren’t separate perfumes stacked on top of each other. They unfold gradually over time, blending into one another as the fragrance develops on your skin. A great fragrance feels fluid as it evolves, rather than being sharply divided into stages.

Performance Terms

Sillage: Sillage is a French word meaning "wake," like the trail left by a boat in water. In fragrance, it's the scent trail you leave behind when you walk through a room. The stronger the base notes, the stronger the sillage.

Longevity: Longevity refers to how long a fragrance lasts on your skin after application. Several things affect longevity:

Projection: Projection measures how far a fragrance radiates outward from your skin in the moment. It’s different from sillage, which is the trail left behind.

Drydown: The drydown is what a fragrance smells like once the top and middle notes have mostly faded and the base notes remain. This phase happens a few hours into wear and is often the most personal part of the fragrance because it reacts closely with your skin chemistry .

Concentration Levels

Fragrance concentration refers to the ratio of fragrance oil to alcohol and water in a formula. Generally, higher concentration means longer wear time and a stronger presence.

Here’s how they’re categorized:

  • Eau de cologne (EDC): lightest, typically 2-5% concentration

  • Eau de toilette (EDT): 5-10%, lasts a few hours

  • Eau de parfum (EDP): 10-20%, longer lasting, more presence

  • Parfum: the most concentrated, 20-45%, deepest and longest wear

At Snif, our fragrances are mainly formulated as EDTs (with a few exceptions), built for daily wear that performs without feeling overwhelming.

Ingredient Terms

Musk: Musk is one of the most iconic fragrance ingredients. Soft, warm, and powdery, it’s often described as smelling like clean skin or fresh laundry. Originally derived from animals, today‘s musk is almost entirely synthetic.

Essential Oil: An essential oil is a concentrated plant extract obtained through methods like steam distillation . They’re the building blocks of many natural fragrance ingredients.

Accord (ingredient context): In ingredient language, an accord can also refer to a pre-blended fragrance compound designed to recreate a specific smell. For example, gasoline accord, croissant accord, and clean laundry accord.

Synthetic: A synthetic ingredient is a lab-created fragrance molecule used to replicate natural smells more sustainably or to create smells that don't naturally exist. “Synthetic” isn’t a bad word. Many clean formulas, including Snif's, use a blend of high-quality natural and safe synthetic ingredients.

Upcycled ingredients: Raw fragrance materials created from byproducts that would otherwise go to waste. For example, Snif's cedarwood essential oil is derived from sawdust.

The Tell-All

Now you have the vocabulary to read fragrance labels with confidence and shop with a clearer sense of what you like. The more you learn the language of scent, the easier it becomes to trust your nose. Use this newfound knowledge to find your next signature scent .

FAQs

What are fragrance notes?

Notes are the individual ingredients that make up a fragrance. They're organized into three layers — top, middle, and base — that unfold over time.

What does sillage mean?

Sillage is a French word that translates to "wake,” like the trail a boat leaves behind in water. In fragrance, it refers to the scent trail you leave behind when you walk through a room.

What's the difference between EDT and EDP?

The difference between EDT and EDP comes down to concentration, or the amount of fragrance oil in a formula. Eau de toilette (EDT) is lighter and typically lasts a few hours, while eau de parfum (EDP) has a higher concentration and lasts longer.

Sources:

Insight into how skin changes perfume | PubMed

Skin hydration: a review on its molecular mechanisms | PubMed

What’s Your Skin Type? | WebMD

Steam Distillation - an overview | ScienceDirect