To Get Full Protection, You Practically Have to Bathe In It Pariser, the president of the American Academy of Dermatology. “As you get higher and higher, it’s not really a practical difference,” said Dr. But with 99% sunblock, it provides almost identical protection.” It also explains why you see diminishing returns. That’s the percent protection you’re getting with the sunscreen lotion. “If you want to impress friends at your local CVS, take the inverse of the number after SPF and subtract it from 100. Subtracting that 3.33 percentage points from 100, you’re protected from 97% of UVB rays with SPF 30 sunscreen.” “Each minute wearing SPF 30 sunscreen lotion, you get a 1/30th, or 3.33%, of UV exposure that you would get without the lotion. Derek Thompson writing in The Atlantic explains it pretty well: “While an SPF of 2 will absorb 50% of ultraviolet radiation, an SPF of 15 absorbs 93% and an SPF of 34 absorbs 97%.”Įxactly why this is so gets a little complicated. “Consumers need to be aware that SPF protection does not increase proportionally with an increased SPF number,” the foundation states on their website. One would think, based on the formula, that an SPF of 100 would protect you for twice as long as an SPF of 50, but according to the American Melanoma Foundation, that’s not true. That would mean 300 minutes, or five hours.ĭig a little deeper, however, and you find that this number is extremely unreliable.
#SPF IRON WARS III SKIN#
If your skin typically starts to burn after about 10 minutes of sun exposure, for example, a product with an SPF of 30 would theoretically provide 30 times the protection. Meanwhile, UVA rays, which are considered more dangerous when it comes to causing skin cancer, are left out of the equation.Īn SPF number is a measure of the UVB radiation it takes to burn your skin, compared to what it takes to burn when the sunscreen is applied. We’re talking about protection only from UVB rays, which are thought to cause skin reddening and sunburn. SPF stands for “sun protection factor,” but the term is rather confusing. We think you’ll agree that using a product full of natural ingredients that nourish and protect your skin is far better than pulling a drug store brand off the shelf that’s full of potentially toxic chemicals - but that has an SPF of 60 - and expecting it to keep your skin young and healthy-looking while you bake in the sun. Here’s more about SPFs, what really protects your skin, and our philosophy on the whole thing. We have SPF tested now that we’re an international brand (it’s SPF 20, by the way), but when we first released our Sun Love the cost to get it tested would have meant a steep increase in price for you, which we worked hard to avoid. Thirty, fifty, twenty-five…whatever the number, it doesn’t mean that one product is necessarily going to protect you more than another, even though it may seem that way. The term “SPF”, by itself, doesn’t mean much, as far as real skin protection goes. Our Sun Love is full of good-for-you antioxidants and phytochemicals, it not only helps protect you from damaging UV rays, but also provides your skin with the nourishment and moisture it needs to resist the signs of premature aging.įor a long time, we didn’t put an SPF label on our Sun Love, a lot of people asked why, and we were honest about it… We’re so excited to to have a sun protection product because we know we can trust what’s in it. To Get Full Protection, You Practically Have to Bathe In It.
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