منابع مشابه
Measuring the Sun Protection Factor (SPF) of Sunscreens
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...
متن کاملتعیین مقدار Sun Protection Factor (SPF) در کرمهای ضدآفتاب به روش درونتن
Application of sunscreens is one of the most important ways for skin protection against sunburn, early skin aging and skin cancer. Due to variety of sunscreen products, it is necessary to assure their protection ability against the sun’s damages. Performance assessment of sunscreens against UVB expressed by sun protection factor. Due to great cost of determination methods of this factor in for...
متن کاملUltraviolet damage to the eye revisited: eye-sun protection factor (E-SPF®), a new ultraviolet protection label for eyewear
Ultraviolet (UV) radiation potentially damages the skin, the immune system, and structures of the eye. A useful UV sun protection for the skin has been established. Since a remarkable body of evidence shows an association between UV radiation and damage to structures of the eye, eye protection is important, but a reliable and practical tool to assess and compare the UV-protective properties of ...
متن کاملSun protection factor: meaning and controversies.
The Sun Protection Factor (SPF) is the most important data to quantify the effectiveness of a sunscreen, being universally accepted. The method is based on determining the minimum erythematous dose (MED), defined as the smallest amount of energy required for triggering the erythema, in areas of protected and unprotected skin. The SPF value is then calculated as the ratio between the MED of prot...
متن کاملCorrelation Between Sun Protection Factor and Antioxidant Activity, Phenol and Flavonoid Contents of Some Medicinal Plants
Long exposure of UV radiation increases risk of skin diseases such as cancer and photoallergic reactions. UV-B (280-320 nm) radiation is mainly responsible for inducing skin problems. Skin protection is a suitable method in the fight against ultraviolet radiation induced damage. Various synthetic agents have been used as photo protective but because of their potential toxicity in humans, they h...
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 Cosmetic Dermatology
سال: 2004
ISSN: 1473-2130,1473-2165
DOI: 10.1111/j.1473-2130.2004.00130.x