How Sillage works

Where the knowledge comes from

Sillage Brain is compiled from sources, not written from memory. Official house pages, reference databases such as Wikidata, and community datasets each contribute claims: that a fragrance has a vanilla note, that a perfumer composed it, that a house was founded in a given year. Each claim keeps a record of where it came from.

A claim becomes a public fact only when three things are true: its source permits public use, no other source contradicts it, and it has been accepted into the page. Community datasets inform what signed-in members see, but on their own they are never shown as public fact. Images follow the same rule: a picture appears only when its rights allow it.

When sources disagree, or nothing reliable exists, the page says what is missing instead of guessing.

How Sillage learns your taste

Everything you do in Your Sillage is a signal, and some signals count for more than others.

• What you say comes first. Ratings, the notes and families you tell Sillage you love or avoid, your signature scent, and your answers to "Feels right" or "Not me" are the strongest evidence.
• What you wear is an observation. A logged wear shows what you reached for, not necessarily what you love, so it counts for less than a rating.
• What you own is context. A bottle on your shelf tells Sillage what is available to you, not what you prefer.

From these, Sillage builds your affinities for notes and accords, and a set of beliefs about your taste. You can see all of it in Your Brain, confirm what is right and reject what is not. While there is little to go on, Sillage says its view is an early signal rather than a conclusion, and it does not describe how your taste has changed until it has three months of history to compare.

How a suggestion is made

Today's pick weighs your taste against the day itself: the weather, and what you have worn recently, so the same bottle is not suggested two days running. Each suggestion shows its reasons, so you can see why it was chosen and disagree with it.

When you ask Sillage a question, by typing or, where it is available, by voice, the answer draws on the same catalogue and on your own collection. If the answer is not in what Sillage knows, it says so.

What stays private

Your collection, wears, ratings, plans and conversations are private to you. They are never shown on public pages and never shared for advertising.

• You can download everything Sillage holds about you from Settings.
• You choose how long conversations are kept, and you can delete them all at any time.
• In a voice conversation, audio is discarded when the session ends. Only the transcript is kept, under the same retention you chose.