Caution about Sunscreen Use

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If your family is anything like ours, sunscreen is a routine part of our daily lives. Sunscreens protect our skin from sunlight using mineral or chemical filters. Mineral sunscreens use zinc oxide or titanium dioxide. Most sunscreens use chemical filters that contain active ingredients such as oxybenzone. Studies have demonstrated that these chemical filters mimic hormones and can act as endocrine disrupting chemicals.

 

Sunscreen exposure increases our exposure to chemical filters, such as oxybenzone. Oxybenzone use is widespread throughout the US. It is detected in nearly every American.

 

The reproductive system is sensitive to environmental factors. Early pregnancy is a particularly vulnerable time for endocrine disruption. Exposures when trying to conceive can impact the likelihood of conceiving as well as the health of the pregnancy.

 

Oxybenzone exposure and exposure to related compounds is associated with male infertility  and poorer reproductive success in men undergoing fertility treatments. Similarly, men with greater exposure to a similar compound found in sunscreen had poorer sperm quality and took longer to conceive. Female exposures to oxybenzone and related chemicals have been linked to increased risk of endometriosis and problems with ovulation. These chemicals have also been associated with oxidative stress and inflammation in pregnancy.

 

The good news is that we can be informed consumers and change our exposure.

This is a great resource of safer sunscreen alternatives.

 

 

Take home points

  • Avoid sunscreens with chemical filters, particularly oxybenzone
  • Use mineral sunscreens when possible when trying to conceive

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