Measuring ultraviolet A protection in sunscreen products
نویسندگان
چکیده
منابع مشابه
Spectrophotometric determination of UV protection provided by cosmetic products with sunscreen properties
Introduction It is well known that overexposure to the sunlight, particularly to UV rays, may cause many skin defects, like sunburns (erythema), premature skin aging (wrinkles), photosensitivity, suppression of the immune system or even skin cancers. For many years, sunscreens have been recommended by dermatologists, not only as a protective measure against excessive amounts of sunlight, but al...
متن کاملSun protection and sunscreen labeling--an update.
Sun exposure is today well recognized as having an adverse effect on human skin. Part of sun radiation, ultraviolet radiation A (UVA) and B (UVB), can modify skin structures and induce short-term skin changes (sunburn, tanning, hyperkeratinization, brown spots) and long-term skin damages (accelerated skin aging and skin cancers). Protection against both UVA and UVB is very important, therefore ...
متن کاملSunscreen protection against cis-urocanic acid production in human skin.
Commercial sunscreens may offer some protection from immunosuppression induced by ultraviolet (UV) radiation, but agreement concerning the degree of protection is lacking. Cis-urocanic acid, formed by the photoisomerization of transurocanic acid is considered an important mediator of the cutaneous immunomodulation resulting from exposure to UV radiation. We investigated the effect of sunscreens...
متن کاملUltraviolet B-induced DNA damage in human skin and its modulation by a sunscreen.
The UVB component of solar radiation is a risk factor for skin cancer, the most common cancer in the Western world. Yet little is known about the induction of DNA damage in human skin by UVB and its modulation by sunscreens. Here, we apply a novel postlabeling high-performance liquid chromatography technique to quantify UVB-induced photoproducts in skin biopsies with and without sunscreen. The ...
متن کاملInfluence of applied quantity of sunscreen products on the sun protection factor--a multicenter study organized by the DGK Task Force Sun Protection.
It is often debated that the protection against solar-induced erythema under real conditions is dependent upon the amount of sunscreen applied. It is believed that when too little is applied a lower sun protection than indicated on the label will result. The aim of this study was to quantify this effect. In this multicenter study, the influence of three different amounts (0.5, 1.0, 2.0 mg/cm(2)...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the American Academy of Dermatology
سال: 2017
ISSN: 0190-9622
DOI: 10.1016/j.jaad.2017.04.1138