UVA Rays: The “Aging” Rays
- Penetrates deep into the skin layers, damaging collagen and cells. Try 40 times deeper than UVB.
- Increase the risk for skin cancer
- Cause wrinkling and pigmentation
- Up to 50 times more prevalent than UVB
- Present year round with a constant intensity
- Can pass through clouds and glass (people will tend to have more damage on the left side of their face versus right)
UVB Rays: The “Burning” Rays
- Affect the outermost layers of the skin
- Cause skin reddening and sunburns
- Key role in development of skin cancer as well as photoaging
- Varies with time of day, season, and stronger in the summer
- Most intense between the hours of 10:00am to 2:00pm
Now lets talk about SPF (sun protection factor). SPF is ratig how long it will take to cause redness and burning on the skin versus nothing at all. For example, a sunscreen with a SPF30 will protect you from sunburn or redness 30 times longer than you could without sun protection. Important to note that SPF indicates only the level of protection from UVB Rays. It is not an indicator of UVA protection. That is why it is important you use sunscreen that is broad-spectrum to protect across the UVA and UVB spectrum.
One of the best and least expensive thing you can do for your skin is wear sunscreen. SO WEAR YOUR SUNSCREEN AND APPLY IT OFTEN! I’m on the road a lot so I make sure and have sunscreen in my car to reapply throughout the day. And oh, don’t forget to apply on your hands too. It is one of the first areas to show signs of aging. We’ll talk about that on another post. Don’t miss it! Sign up for the Newsletter and Like us on Facebook.
By the way, in my opinion, moisturizers and makeup that say they have SPF 15 is not be enough protection.
Anything that surprised you?
Source: Skin Cancer Foundation