LB - Felice Soldwedel Unit20 728x90

Home | Classifieds | Place Ad | Public Notices | Galleries | Kudos | Obits | Real Estate | Subscriber Services | Villager | Health Directory | Contact Us
The Verde Independent | Cottonwood, Arizona

home : healthcare guide : healthcare guide June 28, 2016


8/19/2011 2:40:00 PM
2011: Making sense of sunscreens
Charles Johnson, M.D.
Charles Johnson, M.D.
By Charles Johnson, M.D.
Arizona Dermatology Group

After 35 years of proposing various regulations for the manufacturers of sunscreens, the FDA has finally issued new labeling rules which will take effect by the summer of 2012.

Sunscreens have long been rated for their protection against the burning rays of the sun, known as UVB, or Ultraviolet B rays. Most people are familiar with this rating system, known as the “SPF”, or “Sun Protection Factor”. The higher the SPF, the longer one can spend in the sun before sunburn develops.

What has been lacking in sunscreen labeling is a rating system for UVA, or Ultraviolet A, protection. UVA has much less potential to cause burning, and thus does not factor into the SPF rating.

UVA rays do age the skin by damaging collagen and elastic fibers in deeper skin levels, and like UVB rays, are linked to skin cancer. Most sunscreen manufacturers have been adding UVA blocking agents to their sunscreens for the last 15-20 years, and label their products as a “broad spectrum” sunscreen.

However, in the absence of testing and labeling for the degree of UVA protection, the consumer is left only to guess as to just how “broad” that broad spectrum claim extends.

How will the new labeling rules work? A manufacturer will be able to label a sunscreen as “broad spectrum” if the degree of UVB and UVA coverage is commensurate.

So, the higher the SPF, the higher must be the UVA coverage as well. If the SPF is 15 or greater they may also claim the sunscreen reduces skin cancer and skin aging risk.

The labeling for waterproof and sweat proof will disappear, as these concepts are invalid and misleading, and a water resistant label can be added if there is evidence of testing for this. Not yet determined is whether the SPF rating will be capped at “50,” as there is little evidence of additional sunburn protection above this level.

How to choose a sunscreen before 2012? Zinc oxide and titanium dioxide are among the most reliable broad spectrum agents currently available. These are well studied, safe, natural minerals that cover the full spectrum of UVB and UVA rays. If the sunscreen has one of these agents, you are more likely to be well protected. Most dermatologists recommend a SPF of at least 15, and reapplying sunscreen for extended sun exposure, sweating, and swimming.

We live in a wonderful and sunny state, however, we have the second highest skin cancer rates in the world. So, cover up, wear a hat, and put on sunscreen before you head outside to enjoy our great weather.


    Most Viewed     Recently Commented
•   Two people shot in Lake Montezuma; one dead (8416 views)

•   Jerome Declares Emergency: Town under mandatory water restrictions (6144 views)

•   Sedona's Midgley Bridge the site of another suicide (3605 views)

•   Cottonwood forum explores long-term solutions to Verde homelessness (2165 views)

•   Cottonwood selects one new, one former, member to fill council vacancies (1138 views)





Article Comment Submission Form
Comments are not posted immediately. Submissions must adhere to our Use of Service Terms of Use agreement. Rambling or nonsensical comments may not be posted. Comments are limited to Facebook character limits. In order for us to reasonably manage this feature we may limit excessive comment entries.
Submit an Article Comment
First Name:
Required
Last Name:
Required
Telephone:
Required
Email:
Required
Comment:
Required
Passcode:
Required
Anti-SPAM Passcode Click here to see a new mix of characters.
This is an anti-SPAM device. It is not case sensitive.
   


Advanced Search

HSE - We want to hear from you
Find more about Weather in Cottonwood, AZ
Click for weather forecast





Submission Links
 •  Submit your feedback about our site

Find It Features Blogs Celebrate Submit Extras Other Publications Local Listings
Classifieds | Place Ad | Galleries | Kudos | Real Estate | Subscriber Services | e-News | RSS | Site Map | Find Verde Jobs | Contact Us
LB - Yavapai Herbal Services

© Copyright 2016 Western News&Info, Inc.® The Verde Independent is the information source for Cottonwood and Verde Valley area communities in Northern Arizona. Original content may not be reprinted or distributed without the written permission of Western News&Info, Inc.® Verde News Online is a service of WNI. By using the Site, verdenews.com ®, you agree to abide and be bound by the Site's terms of use and Privacy Policy, which prohibit commercial use of any information on the Site. Click here to submit your questions, comments or suggestions. Verde News Online is a proud publication of Western News&Info Inc.® All Rights Reserved.

Software © 1998-2016 1up! Software, All Rights Reserved