You’ve probably been applying the sunscreen this summer, and have bought extra bottles on holiday to cover you and your family as you play and have fun in the sun. But what does SPF mean, and can having a higher SPF mean that you can stay out in the sun for longer – or apply sunblock less?
SPF (sun protection factor) is the numerical rating that denotes the extra time a product will allow you to stay outside before you start to burn according to the Daily Mail. A sunscreen with a rating of SPF 15+ would provide a fair-skinned person 15 times more protection for their exposed skin than if they didn’t use a sunscreen, says the Australian Radiation Protection and Nuclear Safety Agency. So if a person starts to burn after 10 minutes in the sun, correctly applied SPF 15 will provide protection for 10 times longer or 150 minutes.
However, sunscreen is rarely applied in real life as it is in lab-testing conditions, and it sweats and rubs off, so never assume you’re safe for the entire period. Your best bet is to re-apply a high-factor sunscreen every two hours.
Our go to sunblock this summer has been Guinot Stick Anti UV — Sun Defense SPF50+ is a sunscreen for Lips, Nose and Cheeks.
SPF50+ Sun Protection for Sensitive Areas (lips, nose, cheeks). Gives your skin intense protection, for the areas which are more sensitive to sun. Great for outdoor activities where the sun is even more intense due to reflected light, for example skiing.
Apply locally, directly onto sensitive areas (nose, lips, cheekbones, ears). Can be used alone or in addition to another sun protection products.Re-apply as needed.
– NUCLEIC DEFENSE(R) DNA: The first sun protection concept which incorporates DNA molecules, in addition to sun filters. Their role is to absorb and neutralise the UV rays, which would otherwise have damaged the DNA of skin cells.