نتایج جستجو برای: sun protection factor

تعداد نتایج: 1040223  

Journal: :The Canadian journal of plastic surgery = Journal canadien de chirurgie plastique 2007
Christine B Novak Diana S Young Joan E Lipa Peter C Neligan

The present prospective study evaluated sun exposure and sun protection behaviours in patients diagnosed with a precancerous or cancerous skin lesion. Following signed informed consent, patients were given a questionnaire regarding sun protection and sun exposure behaviour. There were 50 patients (27 men, 23 women) with a mean age of 59 years. Following diagnosis of a cancerous or precancerous ...

2007
Michael W. Allen

Sun protection products, including sunscreen lotions, are designed to absorb or reflect the sun’s UV radiation to protect the skin from damage. The rating system for sunscreens specifies a Sun Protection Factor (SPF) value, which can be thought of as a time factor for the protection of skin compared to exposure without any protection. For example, if a person would show visible erythema (sunbur...

2015
Céline Couteau Lisa A. DeLouise

Wearing clothes and using sun protection products are effective ways of preventing non-melanocytic skin cancer. Sun protection products are classified as cosmetics in Europe. The number of filters authorized by Regulation (EC) No 1223/2009 amended by Regulation (EU) No 344/2013 stands at a total of 27 (26 organic filters and one inorganic filter-titanium dioxide). After the development of metho...

Journal: :JAMA dermatology 2015
Catherine M Olsen Bridie S Thompson Adèle C Green Rachel E Neale David C Whiteman

IMPORTANCE Primary prevention and early detection are integral strategies to reduce the burden of skin cancer. OBJECTIVES To describe the prevalence of sun protection and skin examination practices in a population exposed to high levels of ambient solar radiation and to identify associated factors. DESIGN, SETTING, AND PARTICIPANTS Cross-sectional analyses of baseline data from a prospectiv...

Journal: :Syntax Idea 2022

Garbage is often a problem for people's lives, but if you apply the 3R system it can minimize buildup, from system, implemented, will produce product. Examples of products that be produced are sunscreen cosmetic or Sun Protect Factor (SPF). The negative impact sunlight affect damage to skin's epidermis UV-A and UV-B rays, where these effects overcome by giving Protection basic ingredients (SPF)...

Journal: :JURNAL REDOKS ( JURNAL PENDIDIKAN KIMIA DAN ILMU KIMIA ) 2019

A Abedini M Magd Zadeh M Mehrabani P Khazaeli

In vitro evaluation of sun protection activity of some medicinal herbs by SPF determination, to find out which herbal extracts have the best protection activity and can be used as sunscreen agent. Sun rays are the most environmental harmful factor which affect skin, cause sun burn and photo aging. According to the previous studies the plant’s flavonoids are suitable absorbents for UV rays. In t...

Journal: :JAMA dermatology 2013
Josette R McMichael Emir Veledar Suephy C Chen

T he handheld umbrella (HU) is a commonly employed method of sun protection by women in many countries in Asia (45% in China) and the Middle East. In Turkey, hats and umbrellas were found to be the most common photoprotection accessories. The HU was standard outdoor attire for women of the 18th and 19th centuries in the United States. In the next century, sunscreen, hats, and sun-protective clo...

Journal: :Preventing Chronic Disease 2004
Jay Maddock Paul Eakin Angela Techur-Pedro Raphael Kaliko D. Christian Derauf

INTRODUCTION Childhood sun exposure is a major risk factor for skin cancer, the most common form of cancer in the United States. Schools in locations that receive high amounts of ultraviolet radiation have been identified as important sites for reducing excessive sun exposure. METHODS The objective of this study was to determine the prevalence of sun protection policies, environmental feature...

ژورنال: پوست و زیبایی 2018
احمدنصرالهی, سامان, ذوالفقاری, فاطمه, رستگار, حسین, فیروز, علیرضا, هدایت, کمند,

Sunscreen products are among the most important ways for skin protection against sunburn, early skin aging and skin cancer. Due to existing wide variation of sunscreens, it is necessary to assure their protection ability against the sun damage. Performance assessment of sunscreen products against UVA is expressed by sun UVA protection factor (UVA-PF). Because currently these factors are determi...

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