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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 ...
To help keep your face protected without contributing to breakouts, we've rounded up a few of the best oil-free sunscreens worth adding to your daily rotation. The 9 Best Oil-Free Sunscreens That ...
Whether you're looking for a sunscreen that's kid and baby safe, or want something free of chemicals for your sensitive skin, mineral sunscreens are the way to go. Dr. Magovern recommends La Roche ...
The zinc oxide–based sunscreen is also paraben- and fragrance-free, making it great for sensitive skin. It also contains no oxybenzone or octinoxate to help protect those precious coral reefs.
A Certified Organic Sunscreen [1], also known as Petrochemical-Free Sunscreen, is a third party certified [2] sunscreen product consisting of certified and approved organic ingredients, with typically zinc oxide acting as the photo-protector.
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%).