Why your perfume disappears by noon in Lagos

Heat, humidity and skin chemistry, and the four things that actually extend longevity here.

The complaint arrives most afternoons: I sprayed this morning and by noon it was gone. Almost always, it is not gone.

You stopped smelling it, not everyone else

Your nose adapts to a constant scent within about forty minutes. This is why people who wear the same fragrance daily are usually the ones applying too much.

Your perfume did not fade. You stopped smelling it about forty minutes in, and everyone else can still smell you.

Heat accelerates, humidity spreads

Warmth increases how quickly the top of a fragrance lifts off the skin, so a citrus opening that lasts two hours in Harmattan may last forty minutes in April. Humidity does the opposite to projection: moisture in the air carries the scent further, which is why the same dose reads louder in the rain.

Four things that actually help

Moisturise first, because dry skin holds nothing. Apply to warm points close to clothing rather than to hands. Use an oil rather than a light eau de toilette for daytime. And choose compositions built on heavy notes: vanilla, tonka, oud, resins and woods stay when citrus has left.