sunscreen

sunscreen /sun·screen/ (-skrēn) a substance applied to the skin to protect it from the effects of the sun's rays.

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sun·screen (snskrn)

n.

A preparation, often in the form of a cream or lotion, used to protect the skin from the ultraviolet rays of the sun.

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Sunscreen

Products which block the damaging rays of the sun. Good sunscreens contain either para-aminobenzoic acid (PABA) or benzophenone, or both. Sunscreen protection factors range from 2-45.

Mentioned in: Sunburn

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Sunscreen

A transparent lotion or cream containing oxybenzone and dioxybenzone, which absorb or scatters UVB light to reduce the risk of actinic-related malignancy and premalignancy

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sunscreen [sun´skrēn]

a lotion applied to the skin as protection against sunburn and the harmful effects of ultraviolet radiation. Sunscreens are labeled with a numerical sun protection factor; the higher the number the more protection is afforded. Patients should be cautioned that the sunscreen should be reapplied after swimming or profuse sweating and that sun exposure must still be limited to prevent adverse effects.

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sunscreen

a topical agent that filters ultraviolet rays reaching the skin; used to prevent sunburn, actinic dermatitis, and in the control of discoid lupus erythematosus.

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sunscreen

Public health A transparent substance lotion or cream containing oxybenzone and dioxybenzone, which absorbs or scatters UVB light, to ↓ the risk of actinic-related CA. See SPF rating Cf Melanoma, Sunblock, Tanning salon, Ultraviolet light.

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Patient discussion about sunscreen.

Q. what does a sun block cream do? and what are a UV rays?

A. It blocks out harmful Ultra violet rays from the skin as the previous entries have related; however it can also block your ability to produce vitamin D. If you live in a northerly area or one that receives limited sunlight, its recommended to get at least 15 minutes of sun a day (this is probably best done with minimal sunblock) and according to personnal sun sensitivity. Another thing to keep in mind is that sunblock works best if applied 20 minutes before sun exposure.