A dupe perfume lasts as long as the original when it is made at the same concentration, but most dupes are not. Longevity is decided by how much fragrance oil is in the bottle, not by the brand name on it. Most dupes sold in Australia are eau de parfum at 15-20% oil, so they fade faster than a designer extrait. A dupe made at extrait strength (around 30%) can match or outlast a standard eau de parfum original.
Short answer: it depends entirely on concentration. Oil percentage is physics, not branding: a 30% bottle has twice as much scent to give as a 15% one, whoever made it. Check the concentration before you buy any dupe, because that number tells you how it will wear.
Why most dupes fade faster
The complaint that "dupes don't last" is almost always a concentration problem, not a quality one. A fragrance fades as its oils evaporate off the skin. A bottle at 15-20% oil simply has less to evaporate than one at 30%, so it disappears sooner. Two dupes can smell identical on a blotter and perform completely differently on skin because one is more concentrated than the other.
How to make any dupe last longer
- Choose a higher concentration: extrait de parfum over eau de parfum.
- Apply to moisturised skin. Fragrance holds better on hydrated skin than dry skin.
- Spray pulse points (wrists, neck, inner elbows), where warmth lifts the scent.
- Spray onto clothing and hair, which hold scent longer than skin.
- Do not rub wrists together. It crushes the top notes.
How Larcin compares
Larcin builds at 30% concentration across the entire range, a deliberate answer to the biggest weakness of cheaper dupes. The concentration science is in what is extrait de parfum, and the longest-wearing picks are in best long-lasting perfume dupes in Australia.
Frequently asked questions
Do dupe perfumes last as long as the originals?
They can, if made at the same or higher concentration. Most dupes are lower-concentration eau de parfum and fade faster. An extrait-strength dupe (around 30%) can match or outlast a standard eau de parfum original.
Why does my dupe perfume fade so quickly?
Low concentration. Most budget dupes are 15-20% fragrance oil. Higher-concentration extrait de parfum lasts significantly longer.
How long do Larcin perfumes last?
They are formulated at 30% concentration, the extrait de parfum strength, built for long wear. Exact time varies by skin, climate and application.
Does applying more make it last longer?
To a point, but concentration and application method matter more. Moisturised skin, pulse points and spraying clothing do more than simply over-applying.
The verdict
A dupe lasts as long as the original when the concentration is there. Larcin removes the guesswork by building everything at 30% extrait. See the range in best dupe perfumes in Australia, or weigh it up in are perfume dupes worth it.
Larcin is an independent Australian fragrance brand. Longevity varies by formulation, skin and climate. Last updated: July 2026.