Spf full form: SPF stands for Sun

SPF stands for Sun Protection Factor, a measure of how well sunscreen protects against UVB rays. Learn how SPF is determined, what it means, and how to choose the right SPF for your skin. WHAT IS SPF AND WHAT DOES IT STAND FOR? SPF stands for Sun Protection Factor, a measure of how well a sunscreen protects the skin from ultraviolet (UV) radiation. If you are still wondering what SPF measures are or are curious about SPF's full form, allow us to simplify it for you. SPF stands for Sun Protection Factor, indicating the laboratory measures of the effectiveness of a sunscreen against UV or ultraviolet rays and sun damage. SPF stands for Senders Policy Framework. It helps protect an email address (of both the sender and receiver) from malicious activities like spoofing, spamming and phishing.