Binary Sun Exposure Indicator

It is well known that too much UV radiation from the sun can damage the DNA in your skin cells and cause sunburn. If enough DNA damage builds up over time it can lead to skin cancer. Obviously, the most popular way to avoid sunburn is to use a sunscreen. However, people tend to forget reapply sunscreen or applied too little and end up getting sunburnt.

Our aim is to develop and commercialise a binary (i.e. sharp) response sun exposure indicator that changes colour when you need to apply more sunscreen or when the risk of sunburn is  so high that it is time to avoid sun and seek shade.