Web Results
Sunscreen is rated by sun protection factor (SPF), a multiplier of the amount of time the skin can be exposed to the sun before experiencing sunburn. The American Academy of Dermatology recommends using broad-spectrum sunscreen with an SPF of at least 15.
Even with sunscreen skin can collect damaging radiation. Wear protective clothing and head covering during the midday hours.

en.wikipedia.org/wiki/Sunscreen

Sunscreen, also known as sunblock and suntan lotion, is a lotion, spray, gel or other topical ... The sun protection factor (SPF rating, introduced in 1974) is a measure of the fraction of sunburn-producing UV rays that reach the skin. For example ...

www.bananaboat.com/sun-safety/spf-chart

Use this handy SPF chart to choose an SPF protection level based on your skin type and amount of time you plan to spend in the sun.

www.no-ad.com/spf-chart.html

Use this chart to determine which SPF (Sun Protection Factor) you should use based on your skin type and the amount of time you expect to be in the sun on an  ...

www.sun-protection-and-products-guide.com/SPF.html

The SPF rating system was developed back in 1962 by Franz Greiter to measure the capacity of a sunscreen to block UVB radiation. The current SPF rating ...

www.webmd.com/beauty/features/high-spf-sunscreens-are-they-better

Nov 9, 2012 ... WebMD discusses the pros and cons of high SPF sunscreens.

www.theskincentermd.com/blog/2013/06/best-sunscreen-spf-misleading

Jun 27, 2013 ... Sunscreen SPF chart When looking for the best sunscreen (or “best sunblock”) you might think that an SPF protection of 60 is twice as good as ...

www.oceanpotion.com/spf-chart.html

Official Ocean Potion Website: Ocean Potion pioneered protective sunscreens by enriching our formulas with sea botanicals and antioxidants that replenish skin ...

blog.freepeople.com/2014/05/natural-spf-sun-oil

May 20, 2014 ... spf chart. There are a ton of recipes out there for homemade sunscreen, so using those and knowledge of my skin type, I came up with a recipe ...

www.skincancer.org/prevention/sun-protection/sunscreen/choosing

Aug 28, 2013 ... For incidental sun exposure — when you are outside only for minutes at a time — a sun protection factor (SPF) of 15, which filters out about 93 ...