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According to the MD Anderson Cancer Center, an SPF 15 sunscreen blocks 93% of the sun’s harmful UVB rays, and SPF 30 blocks 97%. Once you get higher than that, you’re only getting a small ...
While darker complexions have more melanin, providing some natural protection against UV rays, that doesn't eliminate the risk of skin damage, sunburn or cancer, Levin said. What to use in ...
Dr. Linkner: The most important part of a sunscreen label is the SPF or the sun protection factor level which gives you the interval time frame of which the sunscreen will prevent you from ...
The UVA seal used in the EU A tube of SPF 15 sun lotion. As part of revised guidelines for sunscreens in the EU, there is a requirement to provide the consumer with a minimum level of UVA protection in relation to the SPF. This should be a UVA protection factor of at least 1/3 of the SPF to carry the UVA seal. [87]
SPF number: Look for the number 30 or higher, according to dermatologist and Women's Health advisor Mona Gohara, MD. SPF type: The type of SPF you choose (mineral or chemical) is totally up to ...
A relatively new rating designation for sun protective textiles and clothing is UPF (ultraviolet protection factor), which represents the ratio of sunburn-causing UV measured without and with the protection of the fabric. For example, a fabric rated UPF 30 means that, if 30 units of UV fall on the fabric, only 1 unit will pass through to the skin.