Excessive exposure in harmful UV rays can cause premature skin aging, light allergies, malignant melanoma, skin cancer and other diseases. Research and the rapid rise in skin cancer patients have shown that UV-A has a direct relationship with the high incidence of skin cancer.
Thus, the new UV filter agent and improved UV filtration products emerge in the cosmetics market. The rising skin cancer statistics make the protective UV filtering products more popular than ever in markets.
The ancient Egyptians had used clay, calcite powder sun care ingredients to reflect the characteristics of UV damage, including the use of opaque dielectric isolation Sunshine is one of the most common method of sun protection. Until the early 20th century, the Frenchman after a trip with a healthy brown color back to the cities of the highly social, the initiation of the idea of encouraging outdoor enthusiasts to soak up the sun to tan the skin brown. This idea was later recognized as the inspiration of modern UV filtering products industries, at first just to prevent excessive personal skin irradiated in order to protect the health of the long time sun skin. As a result, the well-known salicylate, cinnamic acid ester and amino acid derivatives since 1930, has been applied.
Mainly two types of ultraviolet radiation - UV-A and UV-B and growth of skin cancer is directly related to radiation in the ultraviolet c through the stratospheric ozone layer absorption filter can be eliminated. Ultraviolet light can damage DNA through a direct effect of the photochemical reaction and inhibit the function of the body's immune system, formation of photochemical glutathione products of DNA duplexes, or through a direct effect of free radicals and reactive oxygen species of non-photochemical intermediates, the formation of photochemical products. Therefore, protect the skin from ultraviolet radiation is very important. The sun can be taken to wearing sunglasses, a hat and sun protection clothing cut off from sunlight to isolate the ultraviolet radiation, and use an effective sunscreen products and skin disease prevention products can achieve better protection from the sun.
Sun care products can be divided into three categories: Maintenance, tanning and daily / long term type of protection. Maintenance type, including adding UV filter agent to a variety of cosmetics, solarium and sun lovers. By joining the UV filters and refined spices, water composition and the polymer, the product itself has a high SPF factor, these products are usually more than 100, can be used for infants, children, adolescents, and ski lovers, golf enthusiasts and sun lovers.
Tanning products contain dihydroxyacetone (DHA), and successfully joined the carbohydrates in the sunlight, under the conditions of non-irradiated skin enriched. Such products include the tanning to emulate agent and artificial tanning products. UV filter agent, functional biological materials, antioxidants and natural ingredients can be used as a component of the full effect of the skin care products, to simplify the daily makeup cosmetic procedure, keep the skin from sunburn. In lip tretinoin products and beauty and hair care products can also find traces of sunscreen products.
Sunscreen products as drugs in some countries, while in some other countries are considered cosmetics and quasi drugs. In general, the SPF calculation is neither a unified standard, there is no unified definition. In addition, the UV-A detection method did not reach an agreement in global gateway. More importantly, recognized standards for UV filter agent vary with the different countries, therefore, there is no uniform standard for sunscreen products worldwide.
Uniform standards can make a lot of companies worldwide use the products with unified SPF value, water resistance and UV-A biotin standard. The standard concept has been widely accepted by people. Meanwhile, with the effective conduct of the research process, a variety of new ingredients emerge in major product markets periodically. So sunscreen products can face the future competition and challenges as an overall industry.Source:http://www.cosprm.com
The application of tungsten in various industries
Steel Industry Most of tungsten applied in the production of special steels. The widely used high-speed steel was containing 9-24% of tungsten, 3.8-4.6% of chromium, 1-5% of vanadium, 4-7% of cobalt, 0.7-1.5% of carbon.
Magic effects of coconut oil
According to records, coconut oil can be regarded as the nobility of skin care plant extracts. It was rich in exotic tension of tropical plants, which can enhance the contractile force of the pores, perfectly beautify and nourish the skin.
The Evolution and Impact of Abamectin and Emamectin Benzoate in Pest Control
Abamectin and its derivative, emamectin benzoate, have emerged as pivotal substances in the realm of pest control, offering a broad-spectrum efficacy against various pests while maintaining a favorable environmental profile. As the agricultural industry continues to evolve, these compounds have adapted to meet the growing challenges of pest resistance, expanding their market applications and maintaining cost-effectiveness despite rising production costs.
