Skip to main content

Jeremy Gollehon

Jeremy Gollehon's Public Library

    • Nanoparticles in Sunscreens


      Sunscreens made with zinc oxide and titanium dioxide generally score well in EWG’s ratings because:

      • They provide strong sun protection with few health concerns.
      • They don’t break down in the sun.
      • Zinc oxide offers good protection from UVA rays. Titanium oxide less so, but better than most other active ingredients.
  • More research and more specific FDA guidelines are essential to reduce the risk and maximize the sun protection of mineral sunscreens. Yet even with the existing uncertainties, we believe that zinc oxide and titanium dioxide lotions are among the best choices on the American market.
  • The shape and size of the particles affect sun protection. The smaller they are, the better the SPF protection and the worse the UVA protection. Manufacturers must strike a balance: small particles provide greater transparency but larger particles offer greater UVA protection. The form of zinc oxide most often used in sunscreens is larger and provides greater UVA protection than the titanium dioxide products that appear clear on the skin.

5 more annotations...

  • Don’t depend on sunscreen


    EWG strongly disagrees with FDA’s decision to allow sunscreen makers to claim that their products prevent cancer. We are concerned that this policy will lead people to rely on sunscreen use alone to mitigate their cancer risk, and that this may backfire.


    People who rely on sunscreens tend to burn, and burns are linked to cancer. The CDC has reported that the percentage of American adults who say they have gotten sunburned has increased since 2005 (CDC 2012).


    Stanford University dermatologists who reviewed CDC national survey data concluded that people who relied solely on sunscreens for sun protection had more sunburns than people who reported infrequent sunscreen use but wore hats and clothing to shield themselves from the sun (Linos 2011).

    • What can I do to reduce my risk of getting skin cancer?


      In light of the shortcomings of today’s sunscreens, EWG suggests that you adjust your attitude about sun exposure.

      • Do not use sunscreen as a tool to prolong your time in the sun.
      • Cover up! Hats, shirts and sunglasses are the best protection.
      • Avoid sunburn.
      • Do not use a tanning bed or sunbathe.
      • Protect kids! Early life sunburns are worse, so keep little ones out of the hot sun.
      • Pick a sunscreen with strong UVA protection.
      • Get vitamin D. There is speculation but not proof that adequate levels of vitamin D can reduce the risk of melanoma. But we know that vitamin D is good for combatting other types of cancer. Commit to getting screened for vitamin D deficiency.
      • Examine your skin. Check your skin regularly for new moles that are tender or growing. Ask your primary care doctor how often you should see a dermatologist.

  • 1. There’s no proof that sunscreens prevent most skin cancer.


    Rates of melanoma – the most deadly form of skin cancer – have tripled over the past 35 years. Most scientists and public health agencies – including the FDA itself – have found very little evidence that sunscreen prevents most types of skin cancer. Read more.

  • 7. Mineral sunscreens contain nano-particles.


    Most zinc oxide and titanium dioxide-based sunscreens contain nanoparticles one-twentieth the width of a human hair, to reduce or eliminate the chalky white tint that larger particles leave on the skin. Based on the available information, EWG gives a favorable rating to mineral sunscreens, but the FDA should restrict the use of unstable or UV-reactive forms of minerals that would lessen skin protection. Read more.

  • Vitamin A


    EWG remains concerned that a common sunscreen additive, a form of vitamin A called retinyl palmitate, can harm skin. Government test data shows more skin tumors and lesions on animals treated with this ingredient and exposed to sunlight.

about 15 hours ago

Is the secret to human intelligence lurking in our guts? Recent studies suggest that it might. Together, your genes and the genes of your microbes make up the “hologenome,” a single entity that is molded and shaped by our environment.

    • Some features of VMware Tools do not work in Mac OS X 10.11 El Capitan virtual machines. These features include:
      • Unity  
      • Mirrored folders  
      • 3D acceleration  
      • Air Drop

  • It's common for people, particularly when they're building the platform upon which they will build their product, to give in to the inclination to build everything themselves. The most common reason we generally hear is that they want to avoid vendor lock-in. We have instead optimized for rapidly building and iterating on a product. We espouse the belief that we should not build what we do not sell, and this has not led us astray so far.
May 24, 16

For more than a year, Jay Biederman has pestered Domo Inc. for its financial statements. The former manager wants to estimate how much his tens of thousands of shares in the tech startup are worth.

May 23, 16

For me, it was hornets. One summer afternoon when I was 12, I ran into an overgrown field near a friend’s house and kicked a hornet nest the size of a football. An angry squadron of insects clamped onto my leg; their stings felt like scorching needl…

  • Best feature



  • Most people are saving money for multiple goals. You may be building an emergency fund, saving for summer vacation and socking away money to replace your aging car. It can be hard to prevent yourself from mixing those pots of money together, spending too much of your emergency fund on a vacation or buying a junker car because you’re afraid to dip too far into your rainy-day fund.


    Capital One’s smart solution is to allow online 360 Savings account holders to divide their money into multiple accounts — as many as 25. Easily named to reflect what you’re saving for, these accounts can be viewed all at once, and money can be transferred from one to another, up to six times per calendar month, and there is no monthly fee.


    It’s like a high-tech version of the old tried-and-true envelope method of budgeting, but better, since each account has a variable Annual Percentage Yield (APY) of 0.75%, effective 3/14/16. No minimum balance is required.


    If you like to organize your savings goals into separate buckets, you and Capital One are made for each other.

1 - 20 of 5130 Next › Last »
20 items/page

Diigo is about better ways to research, share and collaborate on information. Learn more »

Join Diigo