SPF is short for sun protection factor. In sunscreen, SPF helps to block your skin from the sun’s radiation. The sun emits two types of radiation: UVA and UVB rays. UVA rays contribute to the signs of aging in the skin health, like wrinkles and sagging. UVB rays are more carcinogenic and often responsible for sunburns. UVA rays also make UVB rays more reactive, so combined, the two can be deadly.สมัคร UFABET
You’re exposed to harmful radiation from the sun virtually anytime you’re outside or near a window that has sunshine. That radiation has an effect on your skin even if you aren’t prone to sunburns.
Works by extending your skin’s natural defenses against the sun’s rays. For example, an SPF of 15 provides about 15 times more protection than just your normal skin without sunscreen. An SPF of 50, then, would provide 50 times more protection than skin without sunscreen. Choosing a broad-spectrum sunscreen means it’s a type of sunscreen that will block out both UVA and UVB rays.
When choosing a sunscreen for your baby, choose one of at least SPF 30. Most baby sunscreens are SPF 50. You don’t have to use baby-specific sunscreen, but a lot of baby sunscreens contain special ingredients to help prevent a baby’s delicate skin from breaking out or getting irritated by the sunscreen.