Hose cosmetics factory tell you: sunscreen hose the SPF value above is what mean

Hose cosmetics factory tell you: sunscreen hose the SPF value above is what we often see SPF 30 + on sunscreen hose, SPF 50 + + +, the SPF is what mean? Professional cosmetics hose factory tell you: 1, the sun is not the same as the length of time, prevent bask in coefficient ( 防晒系数) , English abbreviation for SPF, refers to the coated with sunscreen on the skin protection of energy required to produce the minimum erythema, and without any protection on the skin of the ratio of the energy required to produce the same degree of erythema, simply put, it is the time of the skin against ultraviolet. 2, SPF50 prevent bask in time than SPF30, SPF 30 = 30 * 10 = 300 minutes; SPF 50 10 = = 50 * 500 minutes, SPF30 prevent bask in time for 300 minutes, SPF50 prevent bask in time is 500 minutes. 3, 50 SPF sunblock is usually more expensive than SPF 30. 4, the SPF value applies to everyone, the calculation method is: assuming that the intensity of the ultraviolet (uv) will not change with the passing of time, if a person without any sun protection for 20 minutes after skin will turn red in the sun, when he USES the SPF15 sunscreen, said may be extended for 15 times in the skin can be red after 300 minutes. SPF SPF is to measure the ultraviolet ray in sunshine UVB sunscreen defense ability of detection index. General type skin, prevent bask in index value with 8 ~ 12 advisable. Light sensitive people, prevent bask in index value with 12 to 20 advisable. Sensitivity skin should choose plant formula sunscreen or physical sunscreen containing titanium dioxide. Only contact sunshine on commuted road workers, prevent bask in index value under 15 can, give priority to with facial ministry is prevented bask in. Park, the beach in the wild, sunscreen sunscreen index value in more than 30. When swimming, had better choose waterproof prevent bask in skin care products. General sun protection method: apply sunscreen products, use prevent bask in article such as clothes, bask in food to eat. Sunscreen products are divided into physical sunscreen, sunscreen chemicals, biological sunscreen; The SPF level can reflect is prevented bask in a product the size of the uv protection ability. Disclaimer: the cause of the new advertisement law, my company's product pictures are processing, part of the graphic from this web site or adapted from the Internet, the main purpose is to information sharing, let more people to obtain the required information, all peer originator, such as to infringe your rights or copyright please inform us, we will be deleted in 24 hours! Yangzhou xin fly is one specialized is engaged in the research and manufacture of cosmetics hoses, mainly used in cosmetics packaging, food packaging, pharmaceutical packaging, hotel supplies, packaging, personal care products, packaging, etc. Committed to providing customers with high quality cosmetics hoses and packaging solutions. Telephone: in order to let you better understand our company, please visit our company website: https://www. yzxinfly。 Hose com specializing in the production of cosmetics. Factory direct sale! Address: contact person: Shao Xiansheng mobile: WeChat: phone: /