Ads
related to: spf 15 meaning
Search results
Results From The WOW.Com Content Network
The sun protection factor (SPF rating, introduced in 1974) is a measure of the fraction of sunburn-producing UV rays that reach the skin. For example, "SPF 15" means that 1 ⁄ 15 of the burning radiation will reach the skin, assuming sunscreen is applied evenly at a thick dosage of 2 milligrams per square centimeter [65] (mg/cm 2). It is ...
The most simple way of thinking of it is an SPF 15 filters out 93 percent of UVB light while a SPF 30 filters out 97 percent of UVB light. I always recommend a SPF level at or around an SPF 50, as ...
Wear sunglasses on bright days. If you burn easily, cover up and use broad spectrum SPF 15+ sunscreen. Bright surfaces, [26] sand, water, and snow, [18] will increase UV exposure. 3–5: Yellow "Moderate" A UV index reading of 3 to 5 means moderate risk of harm from unprotected sun exposure. Stay in shade near midday when the sun is strongest.
UPF (ultraviolet protection factor) represents the ratio of sunburn-causing UV without and with the protection of the fabric, similar to SPF (sun protection factor) ratings for sunscreen. While standard summer fabrics have UPF ~6, sun protective clothing typically has UPF ~30, which means that only 1 out of ~30 units of UV will pass through (~3%).
Keep your skin protected while in the sun. For premium support please call: 800-290-4726 more ways to reach us
The 15 Best Moisturizers With SPF You'll Adore Filippo Fortis/Launchmetrics Spotlight ... (Remember, a higher SPF doesn't always mean better protection; it simply offers a slightly higher level of ...