US Patent 7546923 Authenticatable cosmetic packaging device

A packaging device for a cosmetic product includes at least one container forming at least one compartment in which the cosmetic product is directly or indirectly placed. The packaging device includes at least one authentication element incorporating at least one first chemical reagent capable, when placed in contact with a second chemical reagent present on a counterpart authentication element, of producing a detectable change in the second reagent on the counterpart authentication element. A counterfeit detection kit includes the packaging device, and a non-destructive process detects a possible counterfeit packaging device for a cosmetic product.