SPF and Sunscreen
Summer is the time of year most of us all wait upon to come around. Where the sweet smell of summer barbeques are in the air and the beach is the most sort out place to be. The time of year that everyone gets outside and enjoys the warmth that the summer sun brings.
But all that glitters is not gold in the wonderful summer facade. Although sun damage can be caused all year round, summer is a very big culprit when it comes to burnt bodies.
Sunburn can occur in as little as 15 minutes. Two in every three Australians will develop some form of skin cancer by the age of 70, which is why sun protection is so critical to the health of Australians.
This shows just how important protecting ourselves from harmful skin damage is.
Melanoma is the most common cancer in Australians aged 15-44 and skin cancers account for about 80% of all new cancers diagnosed each year.
We all have the drilled in knowledge to wear sunscreen greater that SPF +15. Many of us are guilty to not adhering to this knowledge, as well as many of us do not really understand the dynamics of why this is so important.
What are UVA and UVB rays?
Sunlight is made of different types of radiation; this includes ultra violet (UV) radiation. Ultra Violet radiation is then composed of UVA, UVB and UVC subtypes, which are considered dangerous and harmful as cannot always be detected by our skin.
UVA rays are always present during the day, no matter what season or weather. Did you know that UVA rays are also able to penetrate through glass; this means that you can be developing harmful sun damage sitting in the car, at home or even at work in the office through your glass window!
UVA rays are linked to the signs of premature ageing as they are able to penetrate into the deeper layers of the skin. UVA=sunspots, leathery skin and wrinkles.
UVB rays are mainly responsible for photoaging, sunburn, skin cancer and eye damage. When you get that blistering red sunburn it is UVB that is the responsible offender. UVB rays are more prevalent in the summer; however they are able to reflect of snow or water so it is important to protect yourself the entire year. UVB=Sunburn and blisters.
Protection is necessary even on cloudy days, since up to 80% of the UV rays can penetrate light cloud cover
So when considering sunscreen protection ensures that you are getting cover from both UVA and UVB rays all year round.
What is SPF and what do the numbers mean?
Sun protection factor, commonly known as SPF is derived from the length of time it takes for the skin to burn with sunscreen protection divided by the length of time it takes to burn without protection.
For example if it takes 300 minutes to burn with sunscreen and 10 minutes to burn without, SPF = 300 / 10 = 30.
Therefore we get the sunscreen strength of SPF 30. Or when it takes 150 minutes to burn with sunscreen and 10 minutes to burn without, SPF = 150 / 10 = 15.
So yes, it is important to wear sunscreen all year round, inside and outside as harmful rays are present whatever the weather, and can even penetrate through glass. It is important to wear sunscreen that protects from both UVA and UVB. The higher the SPF, the higher the sun protection; though it is important to reapply throughout the day.
If you require personalised skincare based for your specific skin type contact your local doctor, who will arrange for you to see a Dermatologist. We‘ll provide you with a straightforward, efficient and very effective treatment plan targeted to your concerns. Contact us today.
For more information about sunscreen click here http://www.sunsense.com.au