Is your sunscreen doing more harm than good?

 

You’ve probably heard the recommendation that you apply sunscreen every time you leave the house. But is that sunscreen you are using actually doing more harm than good?

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We are often careful about what we eat, but forget the fact that what we put on our skin is absorbed through the skin and into the bloodstream. This applies to all cosmetics, not just sunscreen, but let’s look more carefully at sunscreen ingredients.

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Two types of sunscreen 

There are two types of sunscreen chemical and mineral. 

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Chemical sunscreens

A chemical sunscreen is absorbed into the skin. UV rays are absorbed and released as heat by the sunscreen. You must reapply these sunscreens often to keep protected from the sun. 

 

Common chemicals used in these sunscreens include oxybenzone, avobenzone, octocrylene and ecamsule. The FDA has set safe limits for the amount that can be found in the bloodstream. Test performed on volunteers showed that even after a single day of use the concentration of these chemicals in the bloodstream exceeded the FDA limit. The amount of oxybenzone found was 400 times the limit set.

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Oxybenzone is a hormone disruptor and has been linked to endometriosis, poor sperm quality, shorter pregnancies and smaller birth weight. sunscreen chemicals have also been found in women's breast milk. It may also be linked to skin cancer.

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Because they are absorbed into the skin they are also more likely to cause problems for acne prone, or sensitive skin or people with hyperpigmentation. 

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Mineral sunscreens

Mineral sunscreens work by providing a physical barrier to UV rays. These include titanium dioxide and zinc dioxide. These are not absorbed into the skin, but should not be used in a spray or powder form that can be inhaled. 

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Mineral sunscreens are considered safe by the FDA. Mineral sunscreens are also considered to be safer for coral reefs. 

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What should you do?

While getting some sunlight is good for you, it's important to protect your skin if you are spending a long time in the sun. Your first choice should be hats and clothing, but make sure your clothing is actually protective. Next choice is a mineral sunscreen. Only choose chemical sunscreens as a last resort.

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How can I help?

Understanding the science behind keeping hormones balanced can be challenging. I can help you navigate this difficult area with custom nutrition and lifestyle advice. To find out more about how I can help book a free nutrition assessment.