![]() When it comes to protecting yourself from the sun, it's important to know what the ingredients in your sunscreen are. What sunscreen ingredients should I avoid while pregnant? The risk of not wearing sunscreen is far greater so there is insufficient evidence to support totally avoiding chemical sunscreens in pregnancy. The caveat on all this is that there are very few human studies, and the studies that exist are small. Physical barrier sunscreens do not penetrate the skin so unlikely to be absorbed in quantities required for hormone or endocrine disruption. Homosalate, another chemical filter, is also a derivative of salicylic acid which should probably be avoided in pregnancy. We call these endocrine disrupters and are best avoided if possible during pregnancy. Regarding pregnancy, oxybenzone is one of many chemical sunscreens that affect hormones and may act as a weak estrogen, a moderate anti-androgen and may be associated with altered birth weight in human studies. Do chemicals affect hormones in pregnancy? ![]() Whether this has an effect on the breastfeeding child is not known. Do the chemicals in sunscreen affect breastfeeding? The most potent ones were ethylhexyl methoxy cinnamate, octocrylene and, homosalate. Well, there is some small evidence that chemicals from sunscreens are then found in the breast milk. ![]() Chemicals in sunscreen during pregnancy Why do chemicals found in sunscreens matter when pregnant? However, if you can stick to a predominantly physical blocking sunscreen (ie make sure the main ingredient is titanium or zinc oxide) that is ideal. The question is, which sunscreen is best to use when pregnant?
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