Are you applying your sunscreen correctly?
From the Guardian
The typical way most of us apply sunscreen leaves our skin with less than half the expected protection from damaging ultraviolet rays, say scientists.
New research has revealed that when sunscreen is applied in a typical way, it provides only 40% of the protection they might expect based on the sun protection factor (SPF). Most skin cancers are caused by DNA damage from UV radiation in sunlight.
Scientists suggest we could increase our protection by wearing a higher SPF to compensate for the tendency to apply sunscreen too thinly. “Given that most people don’t use sunscreens as tested by manufacturers, it’s better for people to use a much higher SPF than they think is necessary,” said study leader Antony Young, professor of experimental photobiology at King’s College London.