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Are any of the chemicals in commercial sunscreens known or suspected to be dangerous to humans?
Question Date: 2008-03-08
Answer 1:

Some of the chemicals that are found in some sunscreens are suspected to be dangerous to humans. Since these chemicals are selected because they absorb UV light very well, that also makes them prone to degradation under UV light. The products of their degradation can be extremely harmful and even cause cancer themselves. However, many of these chemicals are being phased out of use because of these properties.

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