Yes, in most cases reselling genuine perfume as decants is legal, provided you actually own the bottle you’re decanting from, you’re honest that it’s a decant rather than a full retail unit, and you’re not using a brand’s name or logo in a way that implies official endorsement. Where it gets murky is UK and EU cosmetic product regulation, which technically treats a decanted perfume as a “new” cosmetic product requiring its own safety data and labelling.

Where sellers get caught out

Trademark law lets you resell a genuine product you legitimately own (this is called exhaustion of rights), so splitting a bottle you bought at retail and selling small amounts isn’t automatically illegal. The real risk sits with cosmetic safety rules: anyone placing a repackaged fragrance on the market in the UK is technically expected to hold a product information file and comply with labelling and Cosmetic Product Safety Report requirements, which most casual decant sellers never register for. It’s a widely ignored grey area rather than a settled legal green light.

There’s more detail on spotting dodgy resold stock in our guide to spotting fake perfume, and a wider look at how fragrance is classified and regulated in the complete guide to perfume.

What a genuine decant seller should do

  • Clearly label the bottle as a decant, with batch or approximate purchase date if known
  • Never use counterfeit atomiser boxes designed to look like the original brand’s packaging
  • Be upfront about how the perfume was stored, since heat and light affect how it holds up