sunscreen; sunblock; sun cream
A product applied to the skin to protect against sunburn and UV rays. Common in everyday contexts.
In summer, if I don't apply sunscreen, my skin gets red.
This sunscreen is waterproof and doesn't come off easily even in the sea.
I applied sunscreen before going out.
I reapplied sunscreen because I had been sweating.
In summer I use SPF 50 sunscreen.