How a $20 bottle smells like a $500 one

Smell a famous fragrance, then smell a bottle that costs a tenth as much and was made to smell like it. Very often, the honest reaction is: that is closer than it has any right to be. It is not magic and it is not a trick. It comes down to what a fragrance is made of, and what the price on the bottle is actually paying for.

A fragrance is a formula

Every fragrance is a blend of materials — some natural, many made in a lab — in particular proportions. Those materials can be analysed. Perfumers use gas chromatography paired with mass spectrometry to separate a fragrance into its molecules and identify them, which gives a skilled nose a detailed map of how the original was built.

And many of the materials that define modern fragrances are not secret at all. They are aroma chemicals sold to the whole industry. Take ambroxan, the warm, ambery, almost salty material at the base of Dior Sauvage: 42 of the fragrances we cover list an ambroxan note. When the signature of a scent is a material anyone can buy, getting close is a question of skill and balance, not access.

The smell is the formula. The price is mostly everything else.

So what are you paying for?

A bottle from a famous house carries a great deal that is not fragrance: the name, the advertising, the glass and the box, the counter it sits on and the margin of the shop behind it. None of that is a scam — it is what a luxury brand is. But almost none of it ends up on your skin.

Across the 159 fragrances where we can compare like for like, the original's median price is $379 per 100ml. The median cheapest alternative is $30. Put another way, the alternative typically costs about 8% of the original.

A worked example

Le Labo Santal 33 is a good one, because it is so recognisable: cardamom, iris and violet at the top, sandalwood, cedar and leather beneath. At retail it works out at $500 per 100ml. Copycat Fragrances Santal 33 works out at $29.

What you would keep

If you get through 2 × 100ml a year

Santal 33

$1,000

Copycat Fragrances Santal 33

$58

Back in your pocket

$942

What to expect

Close is not identical. How long a fragrance lasts and how far it carries depend on its concentration, which varies from bottle to bottle — so two bottles built on the same accord can wear differently on the same skin. And originals are not perfectly consistent themselves. Even Santal 33's own reviewers say so:

“Performance draws mixed reviews, with decent longevity but often soft projection that some feel is underwhelming for the cost.”

The best approach is the simple one: read the review, pick the alternative people rate, and try it on your own skin. Every fragrance we cover lists its alternatives cheapest first.