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FACT CHECK: UVA VS. UVB RAYS, WHAT’S THE DIFFERENCE?

uva rays and uvb rays

When it comes to sun protection, there are two types of UV rays to be aware of—UVA and UVB. But what’s the difference between the two?

UVA Rays

On   average, most people have already been exposed to large amounts of UVA rays throughout their lifetime. Though less intense than UVB rays, UVA rays are 30-50 times more prevalent and are present during all hours of daylight—even on the cloudiest of days—making it necessary to incorporate SPF protection into your daily routine.

Wrinkles and sunspots are largely caused by UVA rays. Able to penetrate glass and deep into the skin, these rays speed up the aging process and contribute to (if not initiate) the development of skin cancers.

UVB Rays

UVB rays cause sunburns and redness. While UVA rays penetrate beyond the superficial layers, UVB rays damage the skin’s surface layers. Their intensity differs depending on time of day, locale, forecast, and season, but still hold potential in causing sun damage. These are the rays responsible for darkness of skin pigmentation, age spots, and tumors that may ultimately evolve into cancer.

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Author: Kimberly Yang

A 21-year-old blogger, sometimes freelance writer, and full-time business school student. Previously the fashion editorial intern for two boutique magazines and now here at Mario Badescu! I tend to be verbose, so I'll keep it as short and sweet as possible: I write and dance. A lot. Also pertinent: Aries, pescatarian, and lover of all things beautiful. I'll be honest when I admit that before MB, I simply washed my face twice daily and left it at that. But ask if I'm a skincare junkie now and I'll nod voraciously. I can never be without moisturizer, and the Vitamin C Serum makes my heart palpitate. And if by some miracle you haven't tired of me rambling about myself or the Vitamin C Serum and are curious for more, visit my Google+ page for more of my work.

2 Comments

  1. So do most sunscreens protect from both uva and uvb rays?