| 词汇 | sun-protection-factor |
| 释义 | sun protection factor noun[ C ] uk /ˌsʌn prəˈtek.ʃən ˌfæk.tər/ us /ˈsʌn prəˌtek.ʃən ˌfæk.tɚ/(abbreviationSPF) the degree to which sunscreen (= a substance that you put on your skin to protect it from being damaged by the sun) is effective at preventing damage, expressed as a number: Be sure to use sunblock with a sun protection factor (SPF) of at least 15 when you are in the sun. The SPF (Sun Protection Factor) number on the product label tells you how long the the product will protect the skin from burning. Compare ultraviolet protection factor Alpine skiers should protect all exposed areas with a sun protection factor of at least 30. SPF (sun protection factor) ratings apply to a band of ultraviolet light called UVB, which is the key risk factor in skin cancer. Make sure you choose the right sun protection factor for your skin type. Holidays with small children are not like those you used to enjoy, when you lay around sipping cocktails and experimenting with sun protection factors. Make-up & skin care aha alpha-hydroxy acid anti-wrinkle argan oil au naturel barefaced gloss greasepaint liner lip liner lipsalve lipstick made up mascaraed mask mudpack suntan lotion toner wand warpaint You can also find related words, phrases, and synonyms in the topics: Toiletry & perfumes Miscellaneous units of measurement |
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