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Start with fragrance strengths if you are comparing bottle labels. Use the sections below for scent families, notes, storage, application and other practical questions.
Perfume Strengths Chart: Parfum, EDP, EDT and Cologne Explained
Parfum, Eau de Parfum, Eau de Toilette, Cologne and Eau Fraîche explained: the concentration ranges, why stronger lasts longer, and why versions smell different.
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The Basics
Understand scent families, fragrance strengths and the names used on bottles.
The Fragrance Wheel: 4 Main Perfume Families Explained
The fragrance wheel groups floral, amber, woody and fresh scents. Use these four families to describe perfumes, compare samples and find related styles.
What Is a Niche Fragrance?
Niche fragrance means perfume from a specialist scent house. Compare it with designer fragrance, understand ownership and distribution, and choose samples by scent.
Cologne Meaning: What the Word Means and Where It Comes From
Cologne means "water of Cologne", from the 1709 citrus perfume made in Cologne, Germany. What the word means today: a light strength, a fresh style, or any men's fragrance.
What Is Toilette Spray? (It Isn't Toilet Water)
Toilette spray means Eau de Toilette, a lighter perfume concentration of roughly 5–15%. Where the name comes from, how EDT compares with EDP and cologne, and how to wear it.
What Does Aftershave Do?
Aftershave can add fragrance or moisturize skin after shaving. Compare splashes, balms and fragrance-free options, without the pore-closing and wound-healing myths.
Notes & Ingredients
What common scent notes smell like and how to read fragrance descriptions.
What Is Musk Scent? Musk in Perfume, From Deer Glands to Clean Laundry
Musk started as a gland from the male musk deer. How chemists replaced it with nitro, polycyclic and macrocyclic musks, why some people can't smell them, and what each smells like.
What Is Oud Perfume? Read More About This Unique Oil
Oud is agarwood, resin made by trees fighting an infection. Why real oud oil smells smoky and animal, why most oud perfume is an accord, and how Tom Ford Oud Wood fits in.
Patchouli Oil: What Does It Smell Like?
Patchouli oil smells of damp earth, dry wood and dark chocolate. How it's distilled, the patchoulol chemistry behind it, the shawls and hippies that made its name, and safe use.
What Does Eucalyptus Smell Like?
Eucalyptus smells sharp, cool and camphor-like, thanks to one molecule: eucalyptol. Why it feels cold, what it shares with rosemary, and perfumes that use it.
What Does Dragon's Blood Smell Like?
Dragon's blood resin smells faintly sweet and spicy until it's heated. What it is, why perfumes using the name smell so different, and four to try.
What Does Verbena Smell Like? Lemon Verbena in Perfume
Verbena smells like sharp, clean lemon zest with a green, herbal edge. Why it's lighter than lemon, why perfumers can't use the oil, and two verbena perfumes.
How It Works
Explore wear time, fragrance ingredients, cost and handling questions.
How Long Does Perfume Last in the Bottle?
How long perfume keeps in the bottle, what actually goes wrong as it ages (oxidised citrus, darkened vanilla), how to read the date symbols, and what to do with an old bottle.
What Ingredient Makes Perfumes Last?
Big, heavy molecules make perfume last: musks like Galaxolide, woody ambers like Iso E Super and Ambrox. Why they evaporate slowly, what fixatives do, and what notes can't tell you.
Why Is Perfume So Expensive?
Perfume prices reflect ingredients, development, packaging, distribution and brand positioning. Compare sizes and formats to decide what is worth buying.
Is Perfume Flammable? Alcohol, Vapour and Safe Storage
Yes. Perfume sprays are mostly ethanol, which gives off flammable vapour at room temperature. How to apply and store it safely, and why oils still burn.
Practical How-Tos
Storing, applying, decanting, travelling. The everyday questions.
How to Wear Cologne: Where to Spray and How Much
A practical guide to choosing, applying and storing cologne, with advice on spray amounts, shared spaces, sampling and reapplication.
How to Store Perfume So It Lasts Longer
Store perfume closed, upright and away from heat and light. Why sunlight and a steamy bathroom age a perfume, what the cap actually does, and whether a storage case is worth it.
How to Find Your Signature Scent
Find a signature scent by narrowing the notes you enjoy, comparing exact versions and wearing samples in your usual routine. Includes an optional approach to layering.
How Many Sprays Of Cologne Should You Use?
Start with two sprays for most colognes and one for a dense Parfum, then adjust. Why your nose stops noticing your own scent, where to spray, and how to fix too much.
How to Decant Perfume Into a Travel Atomizer
Four ways to decant perfume (pump-fill atomizer, spritz, funnel and pipette), which one suits your bottle, and why air, not the transfer, is what spoils a decant.
Can You Bring Cologne On A Plane?
U.S. carry-on and checked-bag perfume limits, the specific duty-free connection exception, and practical packing advice for bottles and travel atomizers.
Trends & Culture
Understand fragrance categories, dupe houses and perfume history.
What Are Clean Perfumes? Inside the Trend, the Science, and the Brands
Clean perfume has no legal definition. What Clean at Sephora and EWG Verified actually check, what the FDA says about phthalates, and three clean-label perfumes worth smelling.
The Rise of Dupe Houses: How Cheaper Luxury Got Its Own Category
Dossier launched in 2019 naming Baccarat Rouge 540 on its product page, and a category followed. How dupes are made, the four kinds of dupe house, and where the law draws lines.
Celebrity Perfumes: How the Business Actually Works
Most celebrity perfumes are licences: a fragrance company pays to use a famous name and does the work. How the deals work, from Elizabeth Taylor to Rihanna, and which bottles are worth buying.
The History of Perfume, From Temple Smoke to Baccarat Rouge 540
Perfume's history from Mesopotamian distillers and Egyptian kyphi to Chanel No. 5, Angel and Baccarat Rouge 540, and the molecules that made each one possible.
Browse the full library
Browse all 71 published guides, including fragrance-house profiles and perfume history, organised by category.
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