As parents, in addition to blocking the wind and rain for their children, they also have to block UV rays in summer. Like Xiaomi Xiaopi every day at home can not be idle small children, coupled with the stronger UV rays throughout the year in Hong Kong, how to deal with the sun’s damage is also the primary subject of our family (the subject is really a lot). Moms often ask me how to choose sunscreen products and some knowledge of sun protection, choose the day better than hit the day, we will recommend to you all at once today, ready to chop it up? Let’s start with sunscreen: don’t be in a hurry, we need to re-introduce the knowledge of sunscreen, don’t slide your hand down the screen, please be patient and read through, otherwise you will never know which SPF index to choose. The harmful ultraviolet rays are divided into three waves: UVA, UVB, UVC UVC The shortest UVC will basically be ozone isolation, so ignore it. UVA wavelength is the longest, penetrating the dermis, the deepest damage to the skin, tanning, old age, wrinkles, skin cancer or something is because of it. UVB belongs to the medium wave, reaching the dermis, causing damage to the skin by sunburn and redness and water loss. Remember A is for Aging (aging), B is for Burning (sunburn). Then look at the labels of most sunscreens on the market, what can you read: SPF First of all, the most straightforward is the SPF number, remember that this number is only for UVB, how high it is only for UVB. PA written PA (Protection against UVA) is the role of resistance to UVA, the general manufacturers will use the plus sign (+) to indicate that the more plus signs on the better ( The lowest a maximum of five). The most important thing is that you can choose the best sunscreen for your child, so don’t worry about how much SPF is included. How to choose the SPF? If you have Broad Spectrum, we have to see how big the SPF of the sunscreen is. Remember a simple formula: how long you need to be outside, how big the SPF is to choose. A person, without sunscreen is 5 minutes to sunburn, then if he applies SPF 15, it can be extended to 15 * 5 = 75 minutes outdoors without getting sunburned. The American Academy of Dermatology recommends that it is best to choose SPF 30 or above, and some moms may be afraid that the higher the SPF the more chemical ingredients it contains, which is not the case. The more the SPF is, the easier it is for us to let down our guard and forget to make up for it once every two hours, so the chances of sunburn increase instead. The following three points are the composition of the problem, technical control of the mother can look carefully: 1, the current sunscreen is divided into physical sunscreen and chemical sunscreen, physical sunscreen that uses zinc oxide Zinc oxide and titanium dioxide system Titaniumdioxide, the composition table that can be seen, or try to see, if painted out and white and difficult to push with toothpaste coated body, that is basically the zinc titanium two goods. Pediatrics recommend the use of physical sunscreen, the benefits of physical sunscreen is directly applied to go out, without having to apply 20 minutes in advance. But it is said that physical sunscreen is now controversial, because it is said that zinc oxide will produce unstable molecules in the sun, but induce skin cancer chances rise. For scientists to overthrow their own rigorous style every day Mippy mom admired, but this pull drawer is too tossed consumers. Note that this theory has not been fully corroborated, so let’s take a half-hearted attitude. 2, diphenylketone-3 (oxybenzone) is sometimes used as a sunscreen component, and this is very powerful UVA and UVB can be prevented, but diphenylketone-3 is said to cause allergic reactions, and will make hormonal disorders, of course, this is also a theory and practice is not complete, but it sounds strange fear, or to avoid the good. 3, vitamin A palmitate (retinyl palmitate), although this substance has sunscreen function but will accelerate the formation of skin cancer. So when you check the ingredients you must be careful not to have sunscreen in the form of vitamin A as a component. So when choosing a sunscreen dibenzo-3 (oxybenzone) and vitamin A palmitate (retinyl palmitate) must not have, zinc oxide and titanium dioxide made of Titanium dioxide, such physical sunscreen is a matter of opinion. Because EWG is still very recommended physical sunscreen. So when and how often should I apply sunscreen? The American Academy of Pediatrics recommends that sunscreen should not be used on infants under 6 months of age. Infants under six months of age should go out as little as possible between the time the sun is at its peak (i.e., 11 a.m. – 3 p.m.), and if they must go out they should use physical sunscreen, such as wearing light-colored long-sleeved pants, a hat with a brim, and a stroller equipped with a sunscreen canopy. Sunscreen can be used for children over 6 months of age. However, physical sun protection is still the first priority, after which sunscreen is applied to the exposed face and hands, and sunscreen is usually applied 20 minutes before leaving home. And sunscreen should be replenished every 2 hours or so, even if there is written waterproof, it is also necessary to replenish once every 2 hours, pay attention not to use sunscreen and anti-mosquito joint preparations. Preschoolers should be educated about sun protection at the right time, telling them to play in the shade when the sun is too big, to get into the good habit of wearing a hat, and to hydrate more. Other suggestions: 1. Remember to use sunscreen for only one summer after opening the bottle, and buy it again the next summer even if you don’t use it up; 2. It’s best to let the car dissipate heat before driving in summer; 3. Remember to tell elders or nannies and kindergarten teachers who often take care of babies about sun protection and dehydration; 4. Always have a set of light-colored clothes and pants in the car or bag.