What is an SPF rating?
Sun Protection Factor (SPF) indicates how long it will take for ultraviolet B (UVB) rays to redden your skin when you use a sun protection product, compared to how long the skin would take to redden without the product. So, the SPF number gives you some idea of how long you can stay in the sun without burning. For example, if you normally burn in 10 minutes without sunscreen and you've applied a liberal dose of a sunscreen with an SPF number of 15, you should be protected from sunburn for 150 minutes. This does not mean that you are protected from other radiation damage. A broad spectrum sunscreen is required to give protection in the UVA range as well. An SPF rating does not measure Ultraviolet A (UVA) protection.
Are jane iredale sunscreen products water resistant?
Yes, all jane iredale sunscreen products are water resistant to 40 Minutes. The new FDA final rule on the labeling and testing of sunscreen products, does not permit the labeling of sunscreen as “waterproof" or "sweatproof," and only allows “water resistance” claims if the sunscreen remains effective for 40 or 80 minutes while swimming or sweating. The new testing techniques have resulted in a 40-minute designation for all of our sunscreen products.
How much sunscreen must be applied to get the protection advertised?
According to the American Academy of Dermatology you should use enough sunscreen to generously coat all skin that will not be covered by clothing. One ounce, enough to fill a shot glass, is considered the amount needed to cover the exposed areas of the entire body. You should apply our sunscreen liberally and evenly over face and body 15 minutes before sun exposure and re-apply approximately every two hours or after swimming or sweating heavily according to packaging directions. jane iredale sunscreen products are water-resistant up to 40 Minutes. This means that the sunscreen remains effective for 40 minutes while you are swimming or sweating.
Are sunscreens effective against melanoma?
It’s not safe to rely on sunscreens alone to prevent melanoma, which is now the 10th most common type of cancer in the U.S. Most dermatologists feel that it takes over 20 years for melanoma to develop. Those with this cancer today had to have been exposed to the sun's damage two decades ago before effective sunscreens had been developed. Dr. Ceilley, former president of the American Academy of Dermatology, states, “Sun protection should begin in childhood and continue throughout life. Overwhelming evidence supports the beneficial effect of sunscreen usage, not only in preventing painful sunburn, but also in preventing photoaging and skin cancer, including melanoma.”
Can sun damage be reversed?
Yes, it can be but only if the skin is always protected from the sun. There are many excellent skin care products on the market today that can substantially aid the skin in reversing sun damage. But they do little good if they aren't combined with sun protection – so remember to wear your sunscreen, and a hat!
What are some of the effects of sun exposure?
Lines, wrinkles and sagging are the direct result of sun damage to the underlying collagen and elastin fibers. Hyperpigmentation can be caused or exacerbated by sun irritation to the melanocytes (the pigment producing cells), which in turn causes overproduction of melanin, which is in fact the body’s attempt to protect itself. Add in hypopigmented macules, telangiectasias and raised, rough precancerous actinic keratoses (the most common skin precancers) and the result of tanning is not pretty.