Take the guesswork out of knowing when to re-apply your sunscreen!

Banz NZ's Purple Heart Ultra-Violet Indicator changes colour as UV rays are absorbed. The cool technology in the centre of your Ultra-Violet Indicator gradually darkens to reflect the increasing ultraviolet intensity of the sun – and that's your cue to slap on more sunscreen!

When applying sunscreen before heading outdoors, you can also pop a slick of sunscreen over the centre of your Ultra-Violet Indicator. The Ultra-Violet Indicator will gradually darken as the SPF of your sunscreen wears off and can help to indicate when you should reapply your sunscreen. But remember – nothing replaces common sense when dealing with the sun's dangers – slip, slop, slap and wrap!

The Purple Heart Ultra-Violet Indicator is presented on a silver key chain, to clip onto your beach bag, stroller – or use it as a key charm – useful and funky!