LearningCausesv1

Sunscreen reduces ultraviolet exposure

Active ingredients absorb, scatter or reflect ultraviolet radiation.

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Output
A lower ultraviolet dose to covered skin
Input
Skin covered evenly with broad-spectrum sunscreen
Relationship

What connects the input and output?

The sunscreen film intercepts part of the incoming UVA and UVB radiation before it reaches living skin cells.

Sources

1
  1. www.fda.gov: Sunscreen reduces ultraviolet exposurewww.fda.gov

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