[quote=sdrealtor]avoid sun and get annual check by dermatologist. High spf lotion. I use it all the time. My dad passed from melanoma[/quote]
There’s a misconception about SPF rating on sunscreen. There’s a point above SPF50 where the extra SPF is marginal benefit at most. There’s very little difference between SPF50 versus anything higher. Companies charge a lot more for very marginal performance benefits and misleads people into thinking a higher SPF means they can be exposed to the sun a lot longer. Not true
The difference between SPF 50 versus say SPF 100 is around 1% difference in protection. And even companies that claim they are SPF100, in real tests dont actually measure up to SPF100, that margin of error. Also, the protection is only as good as how well you apply it and reapply after…
SPF 15 sunscreens filter out about 93% of UVB rays, while SPF 30 sunscreens filter out about 97%, SPF 50 sunscreens about 98%, and SPF 100 about 99%.
