a cream spread on the skin; contains a chemical (as PABA) to filter out ultraviolet light and so protect from sunburn
"Before heading to the beach, she carefully applied sunscreen all over her exposed arms and legs."
A cream, to be spread on the skin, containing organic compounds that absorb, and/or titanium dioxide that reflects the sun’s ultraviolet radiation.
"Before heading to the beach, I apply a generous layer of sunscreen to my exposed arms and face."