Tag Archives: sunscreen

Labelled sunscreen SPFs overestimate protection in natural sunlight

The concept of the Sun Protection Factor (SPF) was popularised by the Austrian scientist Franz Greiter in the 1970s and subsequently adopted by many regulatory authorities and the cosmetic and pharmaceutical industries as a measure of the

Safely basking in the sun: Some plants apply sunscreen only when they need it

Many of us are routinely advised by our dermatologists to put on our sunscreen before we go outside and to even add more sunscreen in the middle of the day when the sun’s UV rays are most

What, why, how? Everyday sunscreen protection

The electromagnetic radiation which reaches the Earth from the Sun has an extensive impact on life. Very high energy components of the solar spectrum, gamma rays and X-rays for example, are reflected by Earth’s upper atmosphere, protecting