Thursday, April 02, 2009 | Tips & How-Tos, Uncategorized
Like many natural resources, the sun has pros and cons. The vitamin D found in solar energy helps strengthen bones and teeth, and evidence shows that sunlight can positively influence on our mood and psyche. But in an age of global warming and tanning bed fever, it seems more important than ever to get the facts straight on solar UV radiation and sun care. Wearing sunscreen is an essential (NOT optional!) part of maintaining healthy skin. With spring already in full swing and summer rapidly approaching, we at Pür Minerals urge you to read on and boost your UV IQ!
UV Rays: What You Need to Know
Solar energy reaching the Earth consists of ultraviolet (UV) radiation in three different wavelengths: UVA, UVB and UVC. Nearly all UVC rays are blocked by the ozone layer, whereas UVA and UVB rays reach the Earth and are directly linked to melanoma—the most serious form of skin cancer.
Both UVA and UVB are strongest and most detrimental to skin between the hours of 10:00am and 2:00pm. The shorter of the two wavelengths, UVB rays are primarily responsible for sunburns, reaching just below the skin’s epidermis. UVB rays cannot penetrate glass and can be blocked somewhat by clothing. On the other hand, UVA rays—used in tanning beds—can easily penetrate clouds, windows and light clothing, resulting in premature aging, wrinkling and skin cancer.
The Truth About SPFs
SPF, or sun protection factor, is a standard measurement of a sunscreen’s ability to protect the skin against UVB rays. Dermatologists recommend that a minimum SPF of 15 be applied on a daily basis to properly shield skin from harmful UV radiation.
The lighter a person’s skin, the more sun protection they need. An SPF of 30 is recommended for fair skin. Darker skin or a nice tan, however, does not exempt you from wearing sunscreen—there is no such thing as a “safe” tan. Even those with deeper skin tones need protection, as the melanin in dark skin creates only an SPF of 4—not nearly high enough to block UV rays.
Shield Your Skin from Aging
Almost all of what we associate with aging is a result of overexposure to UV rays. Just compare the sun-exposed skin on your arms and legs with the areas on your body that are generally covered; the difference in skin tone and texture is evidence enough. Tanning can take its toll with visible effects via sun spots, deep lines and wrinkles and dehydrated, leathery skin.
Play it Safe with Pür
Incorporating sun protection into your beauty regimen is one of the easiest ways to protect your skin from the sun—and look good doing it! Pür Minerals offers a selection of SPF colour and skin care products designed to keep your skin healthy, youthful and radiant, including 4-in-1 Pressed Mineral Makeup SPF 15, Day Renewal Complex SPF 20 and Mineral Lip Tint SPF 15.