sun protection factor


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sun protection factor

n. Abbr. SPF
A measure of the degree to which a sunscreen protects the skin from ultraviolet radiation, expressed as a number representing the ratio of the minimal ultraviolet dose required to produce erythema with and without sunscreen.

SPF

sun protection factor: the effectiveness of suntanning preparations in protecting the skin from ultraviolet radiation.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sun protection factor - the degree to which a sunscreen protects the skin from the direct rays of the sun
degree, level, grade - a position on a scale of intensity or amount or quality; "a moderate grade of intelligence"; "a high level of care is required"; "it is all a matter of degree"
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The purpose of this study was to enhance the sun protection factor (SPF) value of PABA and minimize the harmful effects of PABA due to its deep penetration into skin.
Wear sunscreen with at least a sun protection factor (SPF) of 15.
When you are outside, use a sunscreen with a sun protection factor (SPF) of at least 30, and reapply it frequently throughout the day.
However, a new study has found that application of sun protection factor (SPF) moisturisers cover less part of the face than sunscreen application.
Experts recommend lotions with a Sun Protection Factor of 15 or more and ultraviolet A star rating of 4 or 5.
The problem is the Sun Protection Factor (SPF) on your sun cream bottle doesn't always guarantee you're protected.
THURSDAY, April 5, 2018 (HealthDay News) -- About 30 percent of indoor tanners (ITs) have been screened for skin cancer (SC), with correlates of screening including older age, history of melanoma or SC, and use of very high sun protection factor (SPF) sunscreen use, according to a study published online April 4 in JAMA Dermatology.
A sun protection factor (SPF) of at least 15 to protect against UV-B (ultraviolet B radiation), with SPF50+ offering most protection.
Tenders are invited for supply of a complete system for analysis of in-vitro sun protection factor
The British Association of Dermatologists recommends you use suncream with an SPF (sun protection factor) of at least 30.
George, medical director and specialist dermatologist at the Prime Medical Center Jumeirah Image Credit: Supplied Expert advises use of a sunscreen with a sun protection factor (SPF) of at least 15 even on cloudy days Image Credit: stock photo
In the case of clothing, the sun protection factor is impacted by the stretching of a fabric during wear, by moisture from perspiration or water and by normal wear.