RW Pierce has developed a hologram for the pharmaceutical packaging market, which can authenticate the product by breathing on it.

The holograms use optical sensor technology and are made from a polymer film, which can have chemical primers embedded in it to create a specific sensor.

The UK-based security print company in Belfast said the hologram reacts to moisture by changing colour and displaying a different image.

The hologram can be incorporated into a tamper-evident seal and a package as an authentication feature to guard against counterfeiting.

The company said it has licensed the technology from Smart Holograms.