The sun emits high levels of radiation, each with its own specific wavelength. As soon as UVR reaches the skin, it is easily absorbed by skin molecules that are in close contact with a certain wavelength. This action can lead to damage to skin proteins, lipids and cellular DNA, eventually leading to skin cancer. Ultraviolet radiation is divided into three types of wavelengths: - UV-A: The wavelength is too high for ozone depletion. It penetrates deep into the skin. - UV-B: is slightly absorbed by the ozone layer and is responsible for sunlight. - UV-C: This is completely absorbed by the atmosphere; can only be obtained from synthetic radiation sources. 1. Sunscreens can absorb or transmit these harmful rays before they reach the skin. The sun protection product will contain a combination of chemicals and moisturizing ingredients. Some ingredients are best for UVB prevention while others block UVA. The sun's solvents are PABA esters, cinnamates, para-aminobenzoic acid (PABA), benzophenes, salicylates, octocrylene and dibenzoyl-methane. Titanium dioxide and zinc oxide are visible barriers and board spectrum that blocks both UVB and UVA. 2. What is SPF? Represents Sun Protection Factor. The number is determined and established by the light intensity that stimulates and promotes redness in the sun-protected skin, divided by the light intensity that promotes redness in the unprotected skin SPF. It is just a UVB protection range from 1 to 45 or more. A sunscreen product with 15 SPF will filter out 92 percent UVB. Alternatively, a sunscreen with 15 SPF will delay the onset of sunburn in a person who can burn in 10 minutes to burn in 150 minutes. SPF 15 sun protection can allow a person to stay in the sun 15 times longer. 3. Application and Sun Screen Selection: - Before purchasing a sunscreen product, read the label and make sure you will filter and absorb both UVA and UVB. - See also product protection level. SPF 15, or 30, depending on how long you usually stay in the sun. - Remember that inexpensive products work like expensive products. - Check the expiration date. An outdated product will lose its power and thus will not play its role. This can lead to severe sunburn. - Choose a product also, labeled board spectrum, to give your skin complete protection against UVB, UVA and UVC. - Remember that light skin will burn faster than dark skin. So people with fair skin need a high SPF. - The product must be compliant and compliant with the standard AS / NZS2604 to support their claims and SPF declaration, water resistance and board spectrum. This should be on their label. - Check product design. It should not be allergenic so it is safe to apply on sensitive skin and face and is acnegenic so as not to clog pores. - Focus on a product that does not contain PABA, which does not contain irritating chemicals and is safe for you to use on the face. - Sun protection against water is best. - Read the label and make sure that in addition to sun protection, it also contains essential moisturizers to nourish your skin at the same time. - Before applying sunscreen, the skin should be clean and dry in order to absorb it properly. - Apply a comfortable amount of sunscreen all over the body and pay special attention to the face, nose, ears, cheeks, and skin as these are the most common areas of sunburn. - Apply frequently, when sweating profusely or after swimming. It is best to soak for 15 minutes before sunrise. - Even on cloudy days, there is still a need to install sunscreen. - Even with a sunscreen, avoid the sun during the hottest hours of the day from 10 a.m. to 4 p.m. - Glossy substances such as zinc cream that reflects UV radiation on the skin, should be applied to small areas of the skin as they tend to reduce sweating.
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