We Checked 274 Dupe Claims Against the Notes. 83 Failed.

By Mahdi MST · Updated 2026-09-22 · 8 min read

Every dupe list works the same way. A cheap bottle is named, an expensive bottle is named, and the two are printed side by side as though the pairing were a fact. Few of the lists behind those claims said where a pairing came from, and fewer showed their working.

We had a way to check. Every bottle we list carries its listed notes, and so does every bottle those lists point at. If a $26 bottle is genuinely built on the same accord as a $360 one, the note lists should overlap. If they share nothing at all, somebody made the pairing up, or copied it from someone who did.

So we ran the comparison on every claim where we hold notes for both sides. 274 of them. This is what came back, and what we did about it.

What did we actually measure?

Accord Twin measured how much the listed notes of each cheap bottle overlap with the listed notes of the expensive bottle it was claimed to copy, weighting the base notes hardest. Base notes are the drydown, the part still on your skin hours later, so a dupe that matches the base matches the part you wear longest. Top notes fade first and are the weakest evidence of a match.

That gives every claim a score. The scores were sorted into three bands: real overlap, thin overlap, and almost none.

This is a test of the note lists, not of the smell. Two bottles can share a note list and smell different, because quality of materials and proportion are not in any note list. Two bottles can also share no notes and still smell related, because a note list is a summary and not a formula. What the test catches is the claim nobody checked at all: the pairing printed because it filled a row in a table.

How many dupe claims failed?

Of the 274 dupe claims Accord Twin could check on both sides, 83 failed, showing almost no overlap:

• 99 showed real overlap. The note lists genuinely agree.
• 92 showed thin overlap. Something in common, not much.
• 83 showed almost none. About 30% of everything checkable.

Those 83 are the ones worth caring about. They are not borderline. They are pairs where the two note lists have essentially nothing to do with each other, printed as if they did.

Accord Twin removed all 83.

It did not publish them with a warning label, because a claim measured to be unsupported is not worth showing at all.

Note lists and families here follow Michael Edwards' Fragrance Wheel, so the comparison uses the same vocabulary the industry uses. The price side has its own check: Accord Twin's dupe price study priced 113 claimed pairs per millilitre at US shops and found a median saving of 85.2%.

How often do two fragrances share an identical note list?

An identical note list is far more often a flanker than a dupe, which undercuts the whole method this guide tests.

Accord Twin checked all 68,065 fragrances in its 107,044-row corpus that carry four or more notes. 8,376 of them, 12.3 percent, share an exactly identical published note list with at least one other bottle, spread across 3,675 shared lists.

The largest clusters are the giveaway. Fifteen bottles share one list, and they are Viktor and Rolf Flowerbomb editions. Twelve share another, and they are Lancome La Vie Est Belle editions. Twelve more are Sisley Eau du Soir across different years.

So the most common reason two bottles have the same printed notes is that they are the same fragrance re-released, not two houses arriving at the same accord. A matching list is a weaker signal than it looks, and that is before asking whether the notes are true.

Are some dupe lists more reliable than others?

Some dupe lists are far more reliable than others: because every claim Accord Twin checked came from a named source list, the lists themselves could be scored, and the spread was wide.

One list produced claims that held up more than half the time. Another failed every single claim we were able to check against it. That is a small sample and we will not name it on that basis alone, but the pattern is clear enough to act on: a claim now ranks lower when its source has a poor record, even when that particular claim cannot be checked.

The wider point is that "perfume dupe list" is not a category with a shared standard. Some may be compiled by people who smelled both bottles, others by people filling a page, and a note check cannot tell which. It can only show how the claims hold up.

What does a claim that passes look like?

A claim that passes has a stated, checkable overlap on the listed notes, and 41 of the 50 pairings Accord Twin now publishes share all five. The widest price gap among them is Zara For Him Red Edition at $39.90 against Baccarat Rouge 540 Extrait de Parfum at $495, five notes out of five.

Older pairings on the list are partial, and they say so. Club de Nuit Intense Man at $26.99 against Aventus at $380, a gap of $353.01, shares pineapple and birch, the two notes Aventus is best known for. That is a real, checkable overlap, and it is why this is the pair Accord Twin lists.

Creed's own page for Aventus leads on pineapple and birch, which is why an overlap on those two notes counts for more than an overlap on a base note nobody buys the bottle for.

What does a partial pairing look like?

A partial pairing shares one or two listed notes and says exactly which, and three of the older pairings on the Accord Twin list share just one.

Vibrant Leather at $39.90 against Santal 33 at $250, a gap of $210.10, shares exactly one listed note: leather. Santal 33's sandalwood, cardamom and iris are not in the cheaper bottle. It is a real pairing and it is published, but the honest description is that you are buying the leather idea and losing the rest.

Asad at $29.50 against Dior Homme Intense at $173, a gap of $143.50, shares amber, and that is the whole overlap. Both wear around 8 hours. Iris, the note Dior Homme Intense is best known for, is not in Asad.

None of those are failures. They are pairings with a stated, checkable basis, and each comes with a clear warning about what you lose. The YSL Babycat dupe guide shows another: Maison Alhambra Ebene, which a clone reviewer rates at 82%, shares three of the eight notes listed for Babycat.

Do famous pairings always share notes?

Famous pairings do not always share notes. Baccarat Rouge 540 at $360 is a famous dupe target, and two of the bottles often named for it, Cloud at $75 and Amber Oud Gold Edition at $95, share none of its listed notes.

Accord Twin lists both, and states on both that the shared listed notes are none: they are vibe-alikes, not note matches. Neither bottle is built from Baccarat Rouge 540's saffron, amberwood, jasmine and cedar. Both are separately constructed Amber-family bottles, paired on mood rather than on notes.

That is a legitimate thing to buy, and for some buyers it is the right buy. It is not the same thing as a note match, and a list that prints it without saying so is telling you something untrue by omission.

Red Temptation at $39.90 is the closer answer on notes: it shares saffron and cedar with Baccarat Rouge 540, a gap of $320.10. Two shared notes out of four is a real overlap, and the list says so.

Why would a dupe site delete its own claims?

A dupe site deleting its own claims gives up inventory: here, 83 of 274 checked claims, about 30%. If a site earns a commission every time a reader clicks through to buy a dupe, deleting 83 claims deletes 83 chances to be paid.

That incentive is real for us too, and pretending otherwise would be the dishonest part. So we publish the number of claims we have deleted, and keep publishing it. It is not virtue; it is the one measurement that would catch us if the incentive ever started winning.

The same logic runs through everything Accord Twin publishes. When a dupe shares one note out of four, it says one note out of four. When it shares none, it says none.

The sites making those claims are worth judging on how they source them, which is what the comparison of five perfume dupe websites sets out, this one included.

What does this not tell you?

A note audit cannot tell you about claims it could not check. Accord Twin checked 274, the ones where both bottles carry a note list it holds, and many of the houses behind dupe bottles publish no note list that could be checked. An unknown share of the claims in circulation therefore has nothing to check against, and those are labelled unchecked rather than guessed.

A passing score is also not a smell test. It means the note lists agree. It does not mean the materials are the same quality, that the proportions match, or that the cheaper bottle lasts as long. Those are different questions, and a note list can only speak to the first.

Sample before you commit. That advice is unglamorous, and it is still the right advice.

It also cannot speak for your nose over a day. A 1996 study found that people stop registering an odour they live with, so a close match can still feel different by the afternoon. The guide to what a dupe perfume is sets out how Accord Twin uses the word, and what two legal sources say about selling one.

Prices here are the figures Accord Twin lists, last checked September 2026. They are a reference for comparing bottles, not one shop's till: the same bottle moves with size and retailer, so check the shop before buying.