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How SPF Ratings Can Do More Harm Than Good

Most customers base their sunscreen purchases on SPF ratings while not having any clue what SPF stands for. SPF is an acronym for "Sun Protection Factor" and the meaning of this number is surrounded by misconceptions. The number itself is not even reliable according to the Atlantic Magazine.

For decades, doctors and the media have recommended you apply sunscreen before going outside. However, their recommendations don't include the kind of sunscreen that is effective, nor do the recommendations explain how the sun can actually be used to protect you from skin cancer and improve vitamin D levels. Many consumers believe the higher the SPF number, the greater the protection against UV radiation. However, most sunscreens protect against UVB but don't have adequate protection against UVA radiation. Sunscreens can pose a danger by giving you a false sense of security.