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Summer Sunscreen Tips

Jun 17, 2016

Chances are you'll be spending some time in the sun this summer. Here's what you need to know about sunscreen and protecting your skin from the sun's short-term and long-term harmful rays as well as the science behind it all.

What does sunscreen do?

Sunscreen shields the skin from the sun's harmful invisible ultraviolet rays. UVA rays are the long-term aging rays. UVB rays are the short-term burning rays. UVC rays burn off before they reach earth's atmosphere. Sunscreen shields your skin from UVA and UVB. It also protects your skin from “free radical damage”, which causes permanent damage to your skin.

Sunscreen protects your skinSunscreen protects your skin

I never get sunburned, why should I wear sunscreen?

What you normally see as a sunburn – red skin -- is a reaction to UVB rays alone. It’s impossible to tell how much UVA damage you are getting until years from now. Unfortunately, plenty of long-term skin damage can be done without the red flag of sunburn being raised.

What does the SPF number mean?

SPF number indicates the amount of UVB protection a product offers. According to the Skin Cancer Foundation, here's how it works: “If it takes 20 minutes for your unprotected skin to start turning red, using an SPF 15 sunscreen prevents reddening 15 times longer – about five hours. Most sunscreens with an SPF of 15 or higher do an excellent job of protecting against UVB.

The Skin Cancer Foundation explains further: “another way to look at it is in terms of percentages: SPF 15 filters out approximately 93 percent of all incoming UVB rays. SPF 30 keeps out 97 percent and SPF 50 keeps out 98 percent. They may seem like negligible differences, but if you are light-sensitive, or have a history of skin cancer, those extra percentages will make a difference. And as you can see, no sunscreen can block all UV rays.”

What happens if I combine two sunscreen products with different SPF’s?

SPF levels do not increase when two sunscreen products are combined (i.e. wearing a SPF 15 and a SPF 30 does not equal a SPF 45). The amount of protection will equal the highest SPF applied.

How often should you reapply sunscreen?

Apply sunscreen at least 30 minutes before heading out into the sun. Despite what the label says, if you are spending time outdoors, all sunscreens, no matter what the SPF value, must be reapplied every two hours and after swimming or exercise.

Rash guards with or without ultraviolet protection help block the sun's harmful ultraviolet raysRash guards with or without ultraviolet protection help block the sun's harmful ultraviolet rays

Can you get sunburned through your clothes?

All fabrics offer some sun protection. Some clothes carry an Ultraviolet Protection Factor (UPF) value, where UPF ratings range from 15 (good) to 50+ (excellent). People with very fair skin who burn easily and people spending a lot of time on the water or in high elevations can benefit from wearing UPF rated clothes. People with average or darker skin who rarely burn will rarely get sunburned through their clothes. If you will be spending a lot of time in the sun, consider wearing a hat to protect your face and a rash guard to cover more of your body over a swimsuit.

Have Your Say

Do you use sunscreen and sun protection? Do you like to tan or use sunless tanners? Tell us in the comments below! 

 

20 Comments

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Sun safety poll

What is the minimum SPF You Should Wear?

  • At least SPF 10
  • SPF 100
  • SPF 30
  • I don't wear sunscreen

Dear Dish-It In The Forums

jake495
jake495 posted in Family Issues:
My mom's side of the family is abusive in their discipline. Its too much for me. Even though my grandma left the house, the effects of her disciplinary actions are hurting my self-esteem and self-confidence.
reply 13 minutes
LUCYQWERTY123
LUCYQWERTY123 posted in Friends:
hey there!! i may have not been in that situation but i can help u dont worry btw have u tried calling her??  :|
reply 1 day
Kawai_Potato
Kawai_Potato posted in Friends:
Me and my best friend met in this year but we are, or were, really close. I'm transferring to a different school this year. Me and my friend used to text every single day since summer vacation started. Now, we don't text at all! Whenever I text her I know she reads it because I use ######## but she never responds. It can't all be bad timing. I miss my best friend :(
reply 2 days
Clarkguild
Dear Dish-it, Sorry to be a burden, but I need some advice. About a year ago, I decided I didn't want to live with my mom and decided to move in with my dad. After my mom found out, she told me "You are no longer my child, go drop dead and rot in hell for all I care." My siblings, especially my twin, began to threaten me and my father's lives if we were to ever step foot near them again. A year later, my dad and I get in massive fights about everything I do wrong and he never seems to try and see my point of view. He often gets ##### and compares me to my mother and his previous exes. I feel lost on what to do. I feel so alone and so...hurt. Do you have any advice? I know it's pathetic of me to rant on here, but I'm clueless and on the verge of snapping.
reply 3 days
heckinmemes
have you tried punching her and your dad
reply 3 days