Sunscreen shows results

The Importance of Sunscreens: The ultraviolet (UV) radiation emitted by the sun can cause significant damage to exposed and unprotected human skin resulting in sunburn in the short term and skin cancers (melanoma and non-melanoma) in the longer term.

Overexposure to UV radiation from the sun is responsible for almost all skin cancers. The actual damage that leads to skin cancer may occur many years before the cancer actually appears.

The use of sunscreens is one of five measures that dermatologists, cancer specialists, cancer councils and societies, and public health authorities recommend should be taken in combination to reduce the risk of sun damage and skin cancer, namely:

1. sunscreen (preferably ‘broad spectrum’, water resistant and with a high or very high sun protection factor [SPF]) applied liberally before exposure of the skin to sunlight and reapplied liberally every two hours (or more often if sweating or swimming);
2. sun-protective clothing;
3. a hat that protects the face, head, neck and ears;
4. sunglasses that provide protection from ultraviolet radiation; and
5. keeping to the shade as much as possible and avoiding excessive exposure of the skin to direct or reflected radiation from the sun.

ISO has published a number of Standards concerning sunblock test procedures such as the ISO International Standard, ISO 24444:2010 in vivo test procedure for determining SPF
and the the International Standard ISO 24443:2012 for determining broad spectrum performance.

Protecting & Anti-ageing...

That Daily use of sunscreen slows skin ageing, a new study found. Although dermatologists have long told people to use sunblock to prevent ageing, this is the first research to show an actual effect on the appearance of skin, researchers said. According to the sunscreen study in The Annals of Internal Medicine those assigned to use sunscreen every day had noticeably more resilient and smoother skin than those assigned to continue their usual practices.

The study involved 900 white people aged 25 to 55 in Australia, using a sun protection factor, or SPF, of 15. Most had fair skin, and nearly all burned in the sun. The majority used sunscreen at least some of the time, and two-thirds wore hats in the sun.

Article Credits ISOorg