How to Store Perfume: Protecting Your Fragrance Collection

The bathroom is where most people keep perfume, and it's close to the worst place. Every hot shower raises the temperature and humidity, and repeated swings speed up the breakdown of the more delicate compounds, usually the bright top notes first.

A bedroom shelf, a wardrobe or a drawer is better. Carry the bottle to the bathroom when you need it and put it back.

UV light breaks down fragrance compounds, which is one reason many perfumes come in dark or opaque bottles. A sunny windowsill will shorten a bottle's life much faster than a closed drawer.

Store bottles in a drawer, a cabinet or their original box.

Constant cool temperatures are good, and repeated swings are bad. Room temperature or slightly cooler is fine. An interior shelf away from outside walls works well.

Avoid the car, window ledges, and anywhere near a radiator or air conditioning vent. Some collectors use a wine fridge for expensive bottles. It works, but most people don't need one.

An open bottle loses its lightest compounds first, so the opening changes over time. Air also oxidizes the scent. Capping the bottle after each use takes a second and slows both.

Most unopened, well-stored bottles stay good for several years. Once open, expect roughly one to three years, depending on the formula. Opened EDTs and citrus-heavy scents usually go off sooner, while oud, amber, musk and woody scents tend to hold up much better.

If a scent smells sharply sour, flat or off compared with how it used to, it has probably turned.

Yes. Clones use the same kinds of ingredients, so heat, light and air affect them the same way. The only difference is psychological: a $35 bottle gets less careful treatment than a $250 one. The chemistry doesn't care what you paid.

If you want a split, keep your best-scoring picks at home and take a cheaper clone in the gym bag or the desk drawer.