What does SPF mean?
SPF stands for ‘sun protection factor’ and is used in Europe and the United States to indicate how well the sunscreen protects against UVB rays. The higher the number, the better the protection against UVB radiation,which can penetrate deeply into the skin and cause sunburns.
What’s the difference between SPF 30 and SPF 50?
- SPF 50 blocks 98% of UVB rays
- SPF 30 blocks 96.7% of UVB rays
As you can see, the difference between SPF 50 and SPF 30 is less than 2%. SPF 30 allows about 3% of rays through while SPF 50 allows about 2% of rays through. This may not seem like much of a difference until you realise that SPF 30 allows 50% more UV radiation onto your skin than SPF 50
SPF 30 and up is considered a high sun protection factor. It offers sufficient protection against UVB radiation and helps prevent sunburns and skin damage.
However, it’s important to reapply sunscreen every two hours to ensure adequate protection. If you plan on swimming or exercising in the sun, reapply sunscreen every 80 minutes to make sure your skin is protected.
Sunday Brush SPF 50
When developing Sunday Brush, we opted for SPF 50. The reason is simple: we wanted to guarantee the highest protection factor against daily exposure to harmful UV rays, especially for the face.
Sunday Brush protects against both UVB and UVA radiation. The latter is associated with premature wrinkles and skin ageing.
Click here to read more about UVA and UVB radiation.
