Most people are aware of the dangers of excessive exposure to the strong summer sun. However, the sun is always a threat, even in the winter. Consistent with the EPA as much as 90% of skin ageing is caused by sun exposure. UV rays, even from winter sun, damage skin collagen resulting in fine lines and wrinkles.
As of September 10, the National Medical Products Administration in China requires additional testing for beauty products containing sunscreen agents. The new rules call for manufacturers to test for skin phototoxicity & sensitisation in any newly registered cosmetics containing chemical UV filters.
The sun has been revered & celebrated since ancient civilisations for its ability to give life & energy. Some cultures, including ancient Egyptians, Romans & Native Americans, even worshipped the sun as a deity. For as long as they have celebrated the sun, however, humans have also respected & protected themselves from it. While over the counter sunscreens are an invention of the twentieth century, sun protection is not.