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New Study Shows Sunscreen Enters the Bloodstream After Just One Day of Use

Posted by Sharon Gnatt Epel on

May is National Skin Cancer awareness month. We know that the deadliest form of skin cancer, melanoma, develops from UV exposure so it is important to protect our tender skin from the sun.

This week a new study emerged claiming that sunscreen enters the bloodstream after just one day of use and remains in the human body for at least 24 hours afterwards. While some of you may find this shocking, it is not news to us at La Ishá. Over the last 10 years we’ve been teaching the public that about 70% of whatever you apply topically to your skin eventually finds its way into your bloodstream. That’s why it is so important to use all-natural, non-toxic beauty products.

Way back in 2010 when we first launched our product line, I made the decision not to put synthetic sunscreen in any of our formulations. This was because almost all sunscreens back then contained a variety of toxic chemicals that were suspect in the development of breast cancer. While we can all agree that it is important to protect our skin from the sun, it is also important to limit the amount of toxic chemicals we put on and into our bodies. My hope was that in time, safe cosmetic legislation would eventually weed out the harmful brands of sunscreen and pave the way for more organic options. 

Our research at La Ishá led us to a safe interim solution. A study conducted in 2001 from Cosmetic Dermatology showed that mixing pomegranate seed oil into a traditional sunscreen can boost the effectiveness of UV protection by 20 percent. Similarly, mixing essential oil of carrot seed with a carrier oil can raise the level of sun protection as high as SPF 38-30. So we added both pomegranate and carrot seed oil to many of our products to take advantage of their natural SPF and add an extra layer of protection from the sun’s powerful rays. We encouraged our clients to use additional sunscreen for even greater protection.

Sunscreen should be an integral part of our efforts to limit UV exposure all year round, along with wearing a wide-brimmed hat, wearing SPF blocking clothing and limiting sun exposure during peak hours when the sun’s rays are at their strongest.

Although sun protection options continue to improve as public awareness increases, we still need to choose our sunscreens carefully and use them intelligently. You may have heard that Palau, Australia, Hawaii and the city of Key West in Florida have all recently passed laws to ban the use of sunscreens that contain non-biodegradable chemicals. This is because the film that is left on the water after we swim in it actually damages living coral reefs and kills marine life. Now that we know this for a fact, it is critical that we pick and choose our sun protection products very carefully.

I encourage you to check out the Environmental Working Group’s website at for more information. They publish a list every year of the top non-toxic sunscreens to help you make an informed decision about which brands are safest for us and our fragile environment. 

Copyright 5-10-19 by Sharon Gnatt Epel for La Ishá Inc.

breast cancer carrot seed oil environmental working group EWG melanoma national skin cancer awareness month non-toxic beauty pomegranate seed oil safe osmetics safe sunscreen sun protection sunscreen sunscreen ban toxic chemicals

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