How Does Sunscreen Work?

How Does Sunscreen Work?

SPF stands for Sun Protection Factor. SPF numbers are an approximate indication of how much protection from the sun a product will provide for your skin.

The Australian Standard for sunscreens allows a maximum sun protection factor (SPF) rating of 50. While this sounds like a significantly higher level of protection than an SPF30 the difference is not really in the amount of UV protection. An SPF 50 sunscreen will filter 98% of UV radiation while an SPF30 product filters 96.7% so the difference is not large. The difference is around the length of time that it will protect you but there are issues with this.

Everyone’s skin is different and each person’s skin can be exposed to the sun for different lengths of time before burning. Sunscreen extends the time before burning by a multiple of the SPF. For example, if you have fair skin and would normally burn in 5 minutes without any sun protection then an SPF 30 will give you 30 x 5 minutes protection. The issue is that all sunscreens will rub off over time with normal activity and perspiration and so in some cases the higher SPF can give a false sense of security. Due to normal activity all sunscreens need to be reapplied regularly.

We stock a range of natural Sunscreen products including WotNot Naturals.

The award-winning WotNot folk developed an earth-friendly formula that will protect you from harmful UVA and UVB rays with zinc oxide as the active component. Instead of soaking up the rays, like chemical UV actives, zinc oxide reflects these harmful rays.