Comparison of UVA protection afforded by high sun protection factor sunscreens.
نویسندگان
چکیده
UVA protection afforded by 6 different sunscreens with a sun protection factor of 21 or more was compared by means of the persistent pigmentation darkening method. Colorimetric and visual assessment showed significant differences in UV radiation-induced pigmentation at 2 hours. The labeled sun protection factor of the tested sunscreens was not predictive of UVA protection level.
منابع مشابه
Sunscreens, skin photobiology, and skin cancer: the need for UVA protection and evaluation of efficacy.
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The sun protection factor (SPF) has widely been used to evaluate the protective value of sunscreens. However, SPF only reflects the effectiveness of the sunscreen to protect against acute sunburn which is mainly due to ultraviolet B (UVB) radiation. The deleterious effects of UVB are well known and UVB was believed in the past to be the spectrum responsible for the damages arising from ultravio...
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In recent years, exposure to ultraviolet (UV) radiation has been linked to a number of human health problems, including sunburn, skin cancer, premature aging of the skin, cataracts, and immune suppression (1–3). At the same time, evidence of aerosol-induced damage to the earth’s primary UV filter, the ozone layer, has increased (4 ), and skin cancer rates have risen to more than 900,000 cases p...
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ورودعنوان ژورنال:
- Journal of the American Academy of Dermatology
دوره 43 6 شماره
صفحات -
تاریخ انتشار 2000